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PHP - Creating A Template Engine...
Hello everybody,
I've started to work on building my own template engine for my website since I need to seperate the logical units from the graphical units and template engines such as Smarty and TBS are way too big for what I really need: a very basic, simple template engine which manage simple tasks such as value reference and conditions. The value referencing has been quite easy, a simple str_replace would do the job correctly. Where it gets complicated is at the conditional management. I need it to make, for exemple: Code: [Select] [IF USER_STATUS_ADMIN]{SHOW_ADMIN_LINK}[ELSEIF USER_STATUS_WRITER]{SHOW_WRITER_LINK}[ELSEIF USER_STATUS_TESTER]{SHOW_TESTER_LINK}[ELSE]{SHOW_ALL_LINK}[/IF] turn into: Code: [Select] if $user_status_admin { echo $show_admin_link; }elseif $user_status_writer{ echo $show_writer_link; }elseif $user_status_tester{ echo $show_tester_link; }else{ echo $show_all_link; } I must admit that I am quite rusted in PHP, so to reach this goal I first thought about using a regex to dispatch all my values... I used this regex: Code: [Select] /\[IF (.*?)\](.*?)(\[\/IF\]|\[ELSEIF (.*?)\](.*?)\[\/IF\])/i Before long I realized that I could only retrieve a single ELSEIF value. So I went with a string scaning method using this code: Code: [Select] $str = '[IF USER_STATUS_ADMIN]{SHOW_ADMIN_LINK}[ELSEIF USER_STATUS_WRITER]{SHOW_WRITER_LINK}[ELSEIF USER_STATUS_TESTER]{SHOW_TESTER_LINK}[ELSE]{SHOW_ALL_LINK}[/IF]'; $pos = strpos($str, '[IF '); A new problem arose... Finding the first "[IF " was going fine, but finding the USER_STATUS_ADMIN between "[IF " and "]" was giving me trouble... So here I am now, which method I should focus my energy on and how to achieve my goal. Any help on the matter would be greatly appreciated, Thanks ! Similar Tutorialshello everyone, i am looking at building a lightweight template engine for some of my scripts that i am using. i have looked into several different ones, and although many have great features, none have exactly what i am looking for. the main thing i haven't liked is that most of them use {placeholder} style tags, which creates unnecessary overhead, because php itself is a template language, so why create a wrapper for something that already does the job? for most of the pure php template classes, this is what i've seen for the most part: : assign variables that replace content : start an output buffer : include the template file : store the rendered content of the template file in a varable : clear the output buffer : return the rendered content i really like this format just because it allows sub-templates in a main file. for instance, i can have a template file for the complete shell, but then have another file to include everytime i want a table, or a menu, or anything modular like that. i was thinking about this though, and basically the entire page is stored in a variable before the output is ever sent to the screen. are there any drawbacks to doing it this way? what about speed and memory? are there better ways to go about it? Hello All!
Below is a simplified version how I render about every page. Should I start using a dedicated template engine? If so, which one and why? Or, should I stick with my existing system? If so, should I make any changes to it? Thank you
<?php
class myModel {
public function getData() //This would really be a query to a DB
{
$dataFromMyDB=new stdClass();
$dataFromMyDB->firstname='John';
$dataFromMyDB->lastname='Doe';
$dataFromMyDB->age=111;
return $dataFromMyDB;
}
}
/**
* Typically used to htmlspecialchars variable.
* $nbsp=0: return htmlspecialchars input
* $nbsp=1: return htmlspecialchars input or   if nothing
* $nbsp=2: return input or   if nothing
* @param $html
* @param boolean $nbsp
*/
function h($html,$nbsp=0) {
$html=trim($html);
switch($nbsp)
{
//Consider changing ENT_QUOTES to ENT_QUOTES|ENT_XHTML or ENT_QUOTES|ENT_HTML401
case 0:default:$return=htmlspecialchars($html, ENT_QUOTES, 'UTF-8');break;
case 1:$return=($html)?htmlspecialchars($html, ENT_QUOTES, 'UTF-8'):' ';break;
case 2:$return=($html)?$html:' ';break;
}
return $return;
}
function render($viewFile,$model)
{
ob_start();
require $viewFile;
$html_string=ob_get_contents();
ob_end_clean();
return $html_string;
}
$model=new myModel();
echo(render('mvc_view.php',$model->getData()));
?>
mvc_view.php
<p>Hello! This is my View</p> <?php echo(h($model->firstname).' '.h($model->lastname).' is '.h($model->age).' years old.'); ?> Ok... So I have a while() query to pull support tickets from my database. I would like to setup a system where the while() function is called inside a template file, without having the template file contain the lines of code for it. Example While Function: $open_tickets = mysql_query("SELECT * FROM support_tickets WHERE user_id='$id' && order_by='1' && ticket_status='open' ORDER BY ticket_id DESC") or die(mysql_error()); while($tick = mysql_fetch_array($open_tickets, MYSQL_ASSOC)) { ?> <tr><td><a href="tickets.php?id=<?php echo $tick['ticket_id'].'">'.$tick['ticket_title']; ?></a></td><td><div align="center"><?php echo $tick['ticket_reply']; ?></div></td><td><div align="center"><?php echo $tick['ticket_urgency']; ?></div></td></tr> <?php } It would be awesome if I could get all that to run off of looping variables so that the template looks like: <?php $begin_while; ?> <tr><td><a href="tickets.php?id=<?php echo $ticket_id; ?>"><?php echo $ticket_title; ?></a></td><td><div align="center"><?php echo $ticket_reply; ?></div></td><td><div align="center"><?php echo $ticket_urgency; ?></div></td></tr> <?php $end_while; ?> or something similar. Suggestions? I don't want to implement smarty or another template system, at least not yet... I just want something in php that can do what's described above. Of course all I'm really looking for is something that looks cleaner... Could I make the while function $tick into something smaller and place the query into the system instead of the template? OK guys please bear with me as this is going to be a little long post. Thanks in advanced for all the help i can get. Ed I am sorry i am a noob on all this. Now on to the problem. I have on my server the aMember script installed and as some of you guys know it works with CSS and Smarty Template Engine. the Signup page is been constructed by three files .. Signup.php which in turn displays the signup.html page in my templates folder. Signup.html load or includes header.html from the same folder. Now on the header.html i put the code of the <head> tag like always <script src ...> loading all the JS libraries. But the libraries actually do not get loaded. I am uploading the three files here in a ZIP file so you guys can have a look at them and try to tell me what am i doing wrong and you guys can point me in the right direction. On the server side i am using Centos 5.5 with apache and php 5 and mySQL server. The html folder is owned not by apache but by another group. Inside the html folder the normal folders including the SMARTY folder templates and templates_c (for temporary cache files) The signup.php page is on the root folder calling the signup.html from templates and this one includes the header at the same time. All the page are CHMOD 644 and the JS are residing in a root folder named JS where all the .js files are. All the .js files are CHMOD 644 as well. Please help me ASAP. Thanks Ed So why would one use a php template engine like smarty, other than to seperate the code from html? Is this method preffered for creating larger web applications with php?
Hi Everyone, Please excuse my lack of tech. terminology. I'm in the learning stages of php/myslq Do you know how both the below pages are very similiar. The only thing that's different is the actual location(s). My question is, is the same code being used for all of these template pages? If so, how does the code know differentiate between different states/cities/? Does each state or even city have a different template? <<--- Thinking out loud here, I don't believe so because that would defeat the purpose of php/mysql. What do you think? http://cars.oodle.com/regions/illinois/ http://cars.oodle.com/regions/indiana/ >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> http://cars.oodle.com/regions/illinois/ <<--- Assuming this code is being used on the "state template" how does the php/mysql code on this page know how to show data from the Bloomington area of Illinois? (assuming it's not custom code for the above page) http://cars.oodle.com/used-cars/bloomington-il-area/ <<--- Assuming this code is being used on the "cars template" how does the php/mysql code on this page know how to show data from the Bloomington area of Illinois? (assuming it's not custom code for the above page) Thanks everyone! Hello, Does anyone know a tutorial I can follow to create my own search engine over the items I have in my SQL database? I find a lot of tutorials but they are all 'one word searches' which means if you type two words you will get all results that contain either word (too many hits). If the search engine tutorial displays result with AJAX even better. Thanks for help. df I want to know how to display results from mysql database by filling in a form. but i have found a tutorial which shows typing in a text box which displays results. if i follow this tutorial will it help me to understand and create php coding to display results for my form? I thinking about building a search engine just as a fun project and a way to develop my skills. However I'm not sure where to start... I want it to be a comparison search engine for computer parts so say the user type in "RAM" it would display results from PC World, Ebuyer, etc. I was thinking of using cURL but how do I know where the search results are on each page. For example say I get a html page of results from PC World and store them in a variable how do I then know what to strip out to get the results I want? Would I just have to look at the source code? Also would I then have to work this out for each site I wanted to search from and have a different method of getting the results from search site? If anyone has done anything like this in the past and could give me some advice that would be great. Thanks Hi, I have a script which searches the MySQL database. It outputs the result which is a business name, but I need the business name to be in a link so the user can click on it and go to another page to find out more information. However the business name is not included in the link, but the $value is.
Here is my script
<?php
include 'init.php';
// normal search
$result_tb = "";
if (!empty($_POST['SEARCH']) && !empty($_POST['search_value'])) {
$e = $_POST['search_value'];
$query = 'SELECT aquaticCenterName FROM reviews WHERE ' .
"aquaticCenterName LIKE '%$e%' OR " .
"town LIKE '%$e%' OR " .
"county LIKE '%$e%' OR " .
"country LIKE '%$e%' OR " .
"rating LIKE '%$e%' ";
$query_result = $con->query($query);
$result_tb = '<div>';
while ($rows = $query_result->fetch_assoc()) {
foreach ($rows as $k => $v) {
$result_tb .= '<a href="reviewResults.php?aquaticCenterName= . $v . ">' . $v . '</a><br>';
}
}
$result_tb .='</div><hr>';
$con->close();
}
?>
<?php
include 'includes/overall/header.php';
include 'includes/logo.php';
?>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<table>
<tr>
<td>
<input type="text" name="search_value" size="30" maxlength="30"/>
</td>
<td>
<input type="submit" name="SEARCH" value="Search"/>
</td>
</tr>
</table>
</form>
<?php echo $result_tb; ?>
<?php
include 'includes/overall/footer.php';
But when I click on the link, I get this in the address bar
reviewResults.php?aquaticCenterName=%20.%20$v%20.
How do I get this to read
eg, reviewResults.php?aquaticCenterName=PaulsAquaticCenter
Many Thanks
aquaman
I need some help with a php code I made for a search engine which I will use on my site, but an error code comes up please help me im ok at php but i need some pointers on my code! CODE: Code: [Select] <?php $button = $GET_['submit']; $search = $GET_['search']; if (!$button) echo "Please enter a keyword!"; else { if (strlen($search)<2) echo "search term to short" else { echo "you searched for $search <hr size='1'>" } mysql_connect("ftp.gpcoin.monkeyserve.com","seanhall_seanhall","81834567"); mysql_select_db("seanhall_search"); $search_exploded = explode(" ",$search) foreach($search_exploded as $search_each) { $x++; if ($x==1) $construct .= "keywords LIKE '%$search_each%'"; else $construct .= " OR keywords LIKE '%$search_each%'"; } $construct = "SELECT * FROM searchengine WHERE $construct"; echo $construct; $run = mysql_query($construct); $found = mysql_num_rows($run) if ($found==0) echo "No results Found."; else { echo "$foundnum results found!<p>"; while ($runrows = mysql_fetch_assoc($run)) { $title = $runrows['title']; $desc = $runrows['description']; $url = $runrows['url'] echo " <b>$title</b><br> $desc<br> <a herf='$url'>$url</a><br> "; } } } ?> error: Parse error: syntax error, unexpected T_ELSE, expecting ',' or ';' in /home/seanhall/public_html/search.php on line 11 Help Hi, Im trying to do a search engine. However, im facing this errors.. Anyone can help.. Error : Notice: Undefined variable: searching in C:\wamp\www\i-document\s.php on line 17 Thankz in advance. Code: [Select] <h2>Search Form</h2> <form name="search" method="post" action="s.php"> Seach for: <input type="text" name="find" /> in <Select NAME="field"> <Option VALUE="file_name">File Name</option> <Option VALUE="year">Year</option> <Option VALUE="downer">Owner</option> < </Select> <input type="hidden" name="searching" value="yes" /> <input type="submit" name="search" value="Search" /> </form> <?php if ($searching =="yes"){ echo "<h3>Search Results</h3><p>"; if ($find == ""){ echo "<p>Please Enter a search term"; exit; } include "config.php"; $find = strtoupper($find); $find = strip_tags($find); $find = trim ($find); $query = mysql_query("SELECT * FROM document WHERE upper($field) LIKE'%$find%'"); while($result = mysql_fetch_array($query)){ echo $result['file_ref']; echo " "; echo $result['file_name']; echo "<br>"; echo $result['owner']; echo "<br>"; echo "<br>"; } $matches=mysql_num_rows($query); if ($matches == 0){ echo "Sorry, we can not find an entry to match your query<br><br>"; } echo "<b>Searched For:</b> " .$find; } ?> Hi Everyone. Am about to create a search engine for my project using php and mysql. My question is that > Do i have to keep creating tables and entries in the database to contain all the topics to be searched for? Or is there another way to go about it? cos i dont think i can really enter all the search topics and their web address and also their keywords. Thank You. Good evening, I am a newbie when it comes to programming, and I am yet learning. With several help from this forum, and other websites, I am able to finish my very first PHP project. It worked fine, as well as the search engine. However, it is foreseen that the application will be utilizing huge amount of data which would require pagination when viewing. And so I found a tutorial from php freaks as well. However, after I integrated the codes from my web application, the search engine suddenly stopped working. It is still, when I leave the field blank, which would display all data. However, if I type down a search query on the field, it still displays all data. Can anyone help me on this? Here's my complete code: <link href="add_client.css" rel="stylesheet" type="text/css"> <?PHP include("dbconnection.php"); $query = "SELECT * FROM records"; if(isset($_POST["btnSearch"])) { $query .= " WHERE last_name LIKE '%".$_POST["search"]."%' OR first_name LIKE '%".$_POST["search"]."%'OR territory LIKE '%".$_POST["search"]."%'OR job_title LIKE '%".$_POST["search"]."%'OR title LIKE '%".$_POST["search"]."%'OR employer LIKE '%".$_POST["search"]."%' ORDER BY territory ASC" ; $result = mysql_query($query, $connection) or die(mysql_error()); } ?> <table width="760" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="199" align="center" valign="top"><a href="login.html"><img src="invent-asia.gif" alt="" width="152" height="58" border="0" /></a> <script type="text/javascript" src="menu.js"></script></td> <td width="176" align="right" valign="bottom"><a href="main.php"><img src="Home.jpg" width="104" height="20" border="0"/></a></td> <td width="130" align="right" valign="bottom"><img src="View.jpg" width="104" height="20" border="0"/></td> <td width="146" align="right" valign="bottom"><a href="add_client.php"><img src="Add.jpg" width="104" height="20" border="0"/></a></td> <td width="109" align="right" valign="bottom"> </td> </tr> </table></td> </tr> <tr> <td><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="200" height="3" bgcolor="#1B1C78"><img src="images/topspacerblue.gif" alt="" width="1" height="3" /></td> <td width="560" bgcolor="#0076CC"><img src="images/topspacerlblue.gif" alt="" width="1" height="3" /></td> </tr> </table></td> </tr> <tr> <td height="553" align="center" valign="top" bgcolor="#F3FAFE"><br /> <form name="form" action="view_client.php" method="post"> <br /> <table width="351" border="0"> <tr> <td width="137" align="left" valign="middle">SEARCH RECORD:</td> <td width="144" align="center" valign="middle"><input type="text" name="search" /></td> <td width="56" align="left" valign="middle"><input type="submit" name="btnSearch" value="Search" /></td> </tr> </table> <br /> <table border="0" cellpadding="3" cellspacing="1" bordercolor="38619E" > <tr> <th width="80" align="center" bgcolor="#E0E8F3">Territory</th> <th width="330" align="center" bgcolor="#E0E8F3">Employer</th> <th width="160" align="center" bgcolor="#E0E8F3">Name</th> <th width="80" align="center" valign="middle" bgcolor="#E0E8F3"> </th> </tr> <?php $conn = mysql_connect('localhost','root','') or trigger_error("SQL", E_USER_ERROR); $db = mysql_select_db('invent-asia',$conn) or trigger_error("SQL", E_USER_ERROR); $sql = "SELECT COUNT(*) FROM records"; $result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR); $r = mysql_fetch_row($result); $numrows = $r[0]; $rowsperpage = 10; $totalpages = ceil($numrows / $rowsperpage); if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) { $currentpage = (int) $_GET['currentpage']; } else { $currentpage = 1; } if ($currentpage > $totalpages) { $currentpage = $totalpages; } if ($currentpage < 1) { $currentpage = 1; } $offset = ($currentpage - 1) * $rowsperpage; $sql = "SELECT * FROM records LIMIT $offset, $rowsperpage"; $result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR); if($result) { for($i=0; $i<mysql_num_rows($result); $i++) { $id = trim(mysql_result($result, $i, "id")); $territory = trim(mysql_result($result, $i, "territory")); $employer = trim(mysql_result($result, $i, "employer")); $first_name = trim(mysql_result($result, $i, "first_name")); $last_name = trim(mysql_result($result, $i, "last_name")); echo "<td>".$territory."</td>"; echo "<td>".$employer."</td>"; echo "<td>".$last_name.", ".$first_name."</td>"; echo "<td><a href='edit_client.php?id=".$id."'>edit</a> | <a href='delete_client.php?id=".$id."'>delete</a> </td>"; echo "</tr>"; } } $range = 3; if ($currentpage > 1) { echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1'><<</a> "; $prevpage = $currentpage - 1; echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$prevpage'><</a> "; } for ($x = ($currentpage - $range); $x < (($currentpage + $range) + 1); $x++) { if (($x > 0) && ($x <= $totalpages)) { if ($x == $currentpage) { echo " [<b>$x</b>] "; } else { echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$x'>$x</a> "; } } } if ($currentpage != $totalpages) { $nextpage = $currentpage + 1; echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$nextpage'>></a> "; echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages'>>></a> "; } ?> </table> <p> <br /> </p> </form> <p> </p></td> </tr> <tr> <td height="38"><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="200" height="35" align="center" bgcolor="#1B1C78" class=white><img src="images/topspacerblue.gif" alt="" width="1" height="3" /> <a href="disclaimer.html"><font color="#FFFFFF">Legal Disclaimer</font></a> </td> <td width="560" align="center" bgcolor="#0076CC" class=white><img src="images/topspacerlblue.gif" alt="" width="1" height="3" /> Copyright © 2006 - 2010 InventAsia Limited. All rights reserved. </td> </tr> </table></td> </tr> </table> Immediate response is very well appreciated. Thank you very much ^^ Hello, I would like to build a php search engine against a mysql database. I am looking for a tutorial but haven't been able to find any good ones. Any ideas of where I can find one? I need one where I can search with several words and if it has the stemmer.class.inc and so on would be great also. thanks, df Php search engine for my site I have a Romanian based language site: http://www.firmelavedere.com with informations about business companies. I implemented a simple php search engine for my website on pages like this on the top right corner: http://www.firmelave...aj-Zalau-15.php I want to add a new radio box field to select language for displayed text. Is there a possibility to integrate Google Site Search with more languages? How can i do that? I need some code suggestions, to make this script run fast. Thanks all. This topic has been moved to Miscellaneous. http://www.phpfreaks.com/forums/index.php?topic=322620.0 Ok, I have the code below and it only searches one keyword of my database please could you tell me how I can search multiple keywords? <? /* * search.php * * Script for searching a datbase populated with keywords by the * populate.php-script. */ print "<html><head><title>[Squashy] Search! NOT MESSED UP.</title></head><body>\n"; if( $_POST['keyword'] ) { /* Connect to the database: */ mysql_pconnect("mysql3.000webhost.com","a4580813_dba","censored") or die("ERROR: Could not connect to database!"); mysql_select_db("a4580813_db"); /* Get timestamp before executing the query: */ $start_time = getmicrotime(); /* Execute the query that performs the actual search in the DB: */ $result = mysql_query(" SELECT p.page_url AS url, COUNT(*) AS occurrences FROM page p, word w, occurrence o WHERE p.page_id = o.page_id AND w.word_id = o.word_id AND w.word_word = \"".$_POST['keyword']."\" GROUP BY p.page_id ORDER BY occurrences DESC LIMIT ".$_POST['results'] ); /* Get timestamp when the query is finished: */ $end_time = getmicrotime(); /* Present the search-results: */ print "<h2>[Squashy] Search Results For '".$_POST['keyword']."':</h2>\n"; for( $i = 1; $row = mysql_fetch_array($result); $i++ ) { print "$i. <a href='".$row['url']."'>".$row['url']."</a>\n"; print "(occurrences: ".$row['occurrences'].")<br><br>\n"; } /* Present how long it took the execute the query: */ print "This search took: ".(substr($end_time-$start_time,0,5))." seconds."; } else { /* If no keyword is defined, present the search-page instead: */ print "<form method='post'>[Squashy Search] <input type='text' size='20' name='keyword'>\n"; print "Results: <select name='results'><option value='5'>5</option>\n"; print "<option value='10'>10</option><option value='15'>15</option>\n"; print "<option value='20'>20</option></select>\n"; print "<input type='submit' value='Search [Squashy]'></form>\n"; } print "</body></html>\n"; /* Simple function for retrieving the currenct timestamp in microseconds: */ function getmicrotime() { list($usec, $sec) = explode(" ",microtime()); return ((float)$usec + (float)$sec); } ?> Thanks Please help Soon! Can anyone please help me with my code. I would like to display the data from another column instead of the id in the url generated by the scirpt. Code: [Select] <?php include('/home/arts/public_html/shows/includes/config.db.php'); if ($link){ $rpp = 10; // results per page $adjacents = 4; $page = intval($_GET["page"]); if(!$page) $page = 1; $reload = $_SERVER['PHP_SELF']; $sql = "select * from craft_shows WHERE venue_state='MD' order by start_date "; $result = mysql_query($sql) or die(mysql_error()); // count total number of appropriate listings: $tcount = mysql_num_rows($result); $date = strftime("%b %d, %Y", strtotime($row['start_date'])); echo "<table class='table7' width='100%' cellpadding='5' cellspacing='1'>"; echo "<tr><td> </td><td>Date</td><td>City</td><td>Show Name</td><td>Attendance</td></tr>"; echo "<tr><td colspan='7'><hr></td></tr>"; // count number of pages: $tpages = ($tcount) ? ceil($tcount/$rpp) : 1; // total pages, last page number $date = strftime("%b %d, %Y", strtotime($row['start_date'])); $count = 0; $i = ($page-1)*$rpp; while(($count<$rpp) && ($i<$tcount)) { mysql_data_seek($result,$i); $row = mysql_fetch_array($result); $id = $row['id']; echo "<tr><td>"; echo "<a href=\"/show_submits/show_detail.php?id=$id\">Details</a>"; echo "</td><td>"; echo strftime('%b %d, %Y', strtotime($row['start_date'])); echo "</td><td>"; echo $row['venue_city']; echo "</td><td>"; echo $row['show_name']; echo "</td><td>"; echo $row['num_visitors']; echo "</td></tr>"; $i++; $count++; } echo "</table>"; echo "<br>"; // call pagination function: include("pagination1.php"); echo paginate_one($reload, $page, $tpages, $adjacents); } ?> |
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