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PHP - Php For Loops And Arrays
Hello, lately I have been having a problem with my simple PHP script. Out of the blue the following script doesnt seem to work properly,
function sanitize_tags($content, $bad_tags = '') { foreach ($bad_tags as $tag) { $stripped_tags = str_replace($tag, '', $content); return $stripped_tags; } return $content; } $contents = "<html> <head> </head> <body>yutu<style>ghghl;kl;<script>hfjhk </body> </html>"; $bad_tag = array("<style>", "<script>"); $sanitize = sanitize_tags($contents, $bad_tag); echo $sanitize; Basically, when the function is invoked, only the first element in the array is used by the function. It seems like the second+ elements arent even iterated. Why is it only the first element is iterated? I have a feeling its going to be something extremely obvious. Thanks in advance. Similar TutorialsCode: [Select] $query = "SELECT * FROM Companies WHERE owner = '$userName'"; $result = mysql_query($query) or die("Error: " . mysql_error()); $count = mysql_num_rows($result); echo("Count: $count<p>"); $result = mysql_query("SELECT name FROM Companies WHERE owner = '$userName'") or die("Error: " . mysql_error()); $result = mysql_fetch_row($result); for ($i=0; $i<=$count; $i++){ // $i<=$count means do while $i is less than or equal to $count /$companyName[$i] = $result[$i]; echo("$i: $companyName[$i]<br />"); echo("$i: $a<br />"); } I am trying to check the number of entries of company names the user has in the table Companies. I am then trying to use a for loop to loop through and store each of those names into an array. It doesn't work and I don't know why, can anyone see my problem? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Second Testing</title> <link href="styler.css" rel="stylesheet" type="text/css" /> </head> <body> <?php error_reporting(0); $num_rows = 16; $number1 = 4; $inn = array(7,10,13,16); $outt = array(14,16,21,23); $numm = array(3,5,7,9); $r_time_in = min($inn); for($i = 0; $i <= $num_rows; $i++) { $new_r_timer_in[$i] = $r_time_in; $new_r_timer_out[$i] = $new_r_timer_in[$i] + 1; $r_time_in += 1; } // for($y = 0; $y <= $number1; $i++) // { // for($i = 0; $i <= ($num_rows - 1); $i++) // { // if(($inn[$y] <= $new_r_timer_in[$i]) || ($outt[$y] <= $new_r_timer_out[$i])) // { // $numb[$i] = $numm[$i] + $numm[$i - 1]; // } // else // { // $numb[$i] = $numm[$i - 1]; // } // } // } for($i = 0; $i <= ($num_rows - 1); $i++) { echo '<table width="526" border="0"><tr> <td width="169"> <input type="text" name="$r_in[]" value="'.$new_r_timer_in[$i].'" style="width:169px" readonly="readonly" class="text_non_color"/></td> <td width="169"> <input type="text" name="$r_out[]" value="'.$new_r_timer_out[$i].'" style="width:169px" readonly="readonly" class="text_non_color"/></td> <td width="169"> <input type="text" name="$r_num[]" value="'.$numb[$i].'" style="width:169px" readonly="readonly" class="text_non_color"/></td>'; } print("</tr>"); ?> </body> </html> the code above works very well in its current state. three columns are produced but only two have data, the third column is empty. when executed, the code is supposed to check whether a range(7 - is between the first element of array $inn and the first element of array $outt and then add the corresponding number in array $numm to the number in that(7 - range the commented out code is supposed to implement this idea but its not.........help. Hey forum, I am a new php user and am having some issues (probably pretty basic to the likes of more experienced users), I am trying to make a script that has 4 checkboxes and a submit button, the values of the checkboxes should be passed through the array using a foreach loop, I got the basic template setup but when trying to pass the array I ran into a few problems. If anyone would take a peek at my code and point me in the right direction it would be much appreciated. Thanks forum. [attachment deleted by admin] for starters, i am a complete beginner at PHP, so i know almost nothing.
so, the basic outline is that i am required to create a table with 2 columns, and use PHP where i can
so the first set of code lays down the table and the ability to type in text of "name" and "surname". ----i think this "input" is HTML, yes?? is there a way to enter it as PHP?
<table border=\"2\"> <tr><th><b>Requirements</b></th><th><b>Selections</b></th></tr> <tr><td>Name</td><td><input type="text" name="name"/></td></tr> <tr><td>Surname</td><td><input type="text" name="surname"/></td></tr>so, for this next section, adding on is the part for "age". i want this to appear as a dropdown selection. i've written PHP where possible, however this does not work when opening the file in a browser. it simply leaves a blank dropdown menu with no options. ????
<tr><td>Age</td><td><select>
<?php
for ($num=11; $num<=22; $num++){
echo '<option>' .$num. '</option>';
}
?>
</select>
lastly, i have the part for "activity choice". this again i believe i wrote the radio buttons in HTML??? am i able to write this as PHP????
<tr><td>Activity Choice</td><td><input type="radio" name="activityChoice" value "music"/> Music ($30.00)<br> <input type="radio" name="activityChoice" value "swimming"/> Swimming ($25.50)<br> <input type="radio" name="activityChoice" value "tennis"/> Tennis ($20.00)<br> <input type="radio" name="activityChoice" value "basketball"/> Basketball ($15.50)<br> <input type="radio" name="activityChoice" value "netball"/> Netball ($15.50)<br> <input type="radio" name="activityChoice" value "dance"/> Dance ($10.50)<br> <input type="radio" name="activityChoice" value "communityService"/> Community Service (No Charge)</td></tr> I'm having troubling with trying to create a function to spit out a single array with the following array. I can write it in a away that looks through the arrays manually. the results i am trying to generate is that each item in generated array. Array to convert
array(
"account" => array(
"login",
"register",
"logout",
"edit",
),
"p" => array(
"report",
),
"array1.0" => array(
"array2.0" => array(
"array3.0",
"array3.1
),
"array2.1",
),
generating the array will look like this
Array ( [0] => account [1] => account/login [2] => account/register [3] => account/logout [4] => account/edit [5] => p [6] => p/report [7] => array1.0 [8] => array1.0/array2.0 [9] => array1.0/array2.0/array3.0 [10] => array1.0/array2.0/array3.1 [11] => array1.0/array2.1 ) The idea is that id generates a single array with combined labels and arrays inside, etc. I just can't figure out how to create a script that will create this array even If I add a new value or array.
I have this thing that i am trying to make but i cant get it to work.. can anyone help? Code: [Select] function sql_read( $dbname,$dbusername,$dbpassword ) { $names = array(); $password = array(); $connect = @mysql_connect("mysql11.000webhost.com",$dbusername,$dbpassword) or die("Could Not Connect"); @mysql_select_db ($dbname) or die("Could not find DataBase"); $query = mysql_query("select * from users"); $numrows = mysql_num_rows($query); if ($numrows > 0){ while($row = mysql_fetch_assoc($query)){ $names[] = $row["uname"]; $password[] = $row["password"]; $id = $row["id"]; } $return = array($names,$password,$id); }else{ $return = array(); } return $return[]; } $names = array(); $names = sql_read("XXXXXX","XXXXXX","XXXXXXX")[0]; The error i get is Code: [Select] Parse error: syntax error, unexpected '[' in /home/a5480952/public_html/sql/index.php on line 28 Line 28 is "$names = sql_read("XXXXXX","XXXXXX","XXXXXXX")[0];" Please help... i REALLLLD need help with this.. ask questions if you want to know more about what i am trying to do... thanks! I have two arrays, both with the same key values. I'd like to combine them. So for instance... Code: [Select] <?php $array1['abcd'] = array( 'value1' => "blah", 'value2' => "blahblah"); $array1['efgh'] = array( 'value1' => "ha", 'value2' => "haha", 'valuex' => "xyz"); $array2['abcd'] = array('value3' => "three", 'value4' => "four"); $array2['efgh'] = array( 'value3' => "hohoho", 'value6' => "six6"); function combine_arrays($array1,$array2) { //*combining* return $single_array; } echo "<pre>"; print_r(combine_arrays($array1,$array2)); echo "</pre>"; /* would produce ['abcd'] = ( 'value1' => "blah", 'value2' => "blahblah", 'value3' => "three", 'value4' => "four" ) ['efgh'] = ( 'value1' => "ha", 'value2' => "haha", 'valuex' => "xyz", 'value3' => "hohoho", 'value6' => "six6" ) */ ?> What's the easiest way to do this? i am having issues with my class work. this needs to start at the $startNum and end with the $endNum and display results in the increments submitted by the html. I can not get it to print out correctly it is supposed to say: The square of $startNum is $square //until it hits the end number and is going up by the correct increments, It wont go up by any increments and only shows a list if i leave out the increment-----any suggestions??? please i have to keep it very simple since i am just learning-ty html </head> <body> <h1>Squares</h1> <p> <form action = "squares2Boles.php" method = "post" > <p>Start with: <input type = "text" size = "5" name = "startNum" /> </p><p>End with: <input type = "text" size = "5" name = "endNum" /> </p><p>Increment by: <input type = "text" size = "5" name = "increment" /> </p><p><input type = "submit" value = "Display the Squares" /></p> </form> </body> </html> my php: <html> <head> <title>Squares</title> <link rel ="stylesheet" type="text/css" href="sample.css" /> </head> <body> <?php $startNum = $_POST['startNum']; $endNum = $_POST['endNum']; $increment = $_POST['increment']; $square = $_POST['square']; print ("<h1>SQUARES</h1><hr />"); for ($startNum = $startNum; $startNum <= $endNum; $startNum = $startNum + $increment) { $square = $startNum * $startNum; print ("The square of $startNum is $square<br />"); } print ("<hr />"); ?> </body> </html> I do not have the option that I know of to do a LIMIT 10 in my odbc query. How can I get it to count the number of while loops and stop at 10? Code: [Select] while (odbc_fetch_row($rs)) { } Did PHP a few years ago and for the life of me i can't work out why this doesn't work: Code: [Select] for ( $counter2=1; $counter2 < 1000; $counter2++) { for ( $counter1=1; $counter1 < 1000; $counter1++) { echo "Fixed bug"; } } and yet this does Code: [Select] for ( $counter2=1; $counter2 < 100; $counter2++) { for ( $counter1=1; $counter1 < 100; $counter1++) { echo "Fixed bug"; } } I tested it because I have a rather large amount of data to retrieve from an XML file and i kept receiving errors Hi guys
I just wanted to make a short post and talk about an issue im having and maybe get some advice. I know that loops aren't that hard to grasp and I shouldn't be having this much trouble understanding them but im just not getting it. I dont really know how to explain it but loops (like looping through mysql in an update statement) is foren to me and i was wondering if anyone had any advice for maybe learning them or maybe something im just over looking or maybe some good tutorials. I really want to get them down and start using them in scripts i right but im getting so frustrated because i constantly hear how easy they are and im just not getting it. if i wasn't clear please let me know and ill try to explain more clearly thanks guys JL i have been given this task in in uni. i was wondering it some one would be so kind to help me with it. all i have so far is this <?php for($x=1; $x<=3; $x=$x+1) { print "$x <br>"; } if ($x== "A") { } ?> the task is below Generate a number between 1 & 3 If 1 then assign A, If 2 then assign B, If 3 then assign C Add to a wordstring (using string concatenation with .) We need 3 letters generated to give a 3 letter word For loop (3) Generate a number between 1 & 3 If 1 then assign A, If 2 then assign B, If 3 then assign C Add to a wordstring (string concatenation with .) End loop Print 3 letter word Hello everyone, I've already posted a question trying to resolve my problem, but I've changed my code so much, I figured it may be best just to post a new thread with a better explanation of what I'm trying to do. Anyway, here's what I've got: I have a database with 2 tables: products and reservations. I have 3 products for now, that can be reserved for any date. I'm trying to create a page that will display all of the available products for a specific date. The user selects the date they want to check, and then the code should check their selected date and compare it with the database to display everything that is available on that date. The database looks like this: Products Table: prodid prodname 01 item 1 02 item 2 03 item 3 Reservations Table: prodid resdate 01 02/22/2012 01 02/23/2012 03 02/22/2012 Here is the code that I have now: Code: [Select] <?php $resultres = mysql_query("SELECT `prodid` FROM reservations WHERE `resdate` = '$resdate'") or die (mysql_error()); while ($rowres = mysql_fetch_row($resultres)) { $resprodid = $rowres[0]; $resultavail = mysql_query("SELECT `prodid` FROM products WHERE `prodid` != '$resprodid'") or die (mysql_error()); while ($rowavail = mysql_fetch_row($resultavail)) { $prodid = $rowavail[0]; echo $prodid; echo $proname; } } ?> When I select 02/21/2012, I get no results, where I should get all three products as a result, because none of them are reserved on this date. When I select 02/22/2012, I get a result of these products, in this order: 02, 03, 01, 02. I should get a result of ONLY 02, because this is the only product that isn't reserved for this date. When I select 02/23/2012, I get a result of 02 and 03, which in this case would be the correct return, because 01 is the only one reserved for this date. Any idea what I'm doing wrong here and how to fix it? Any help is GREATLY appreciated! Hi All, and thanks for your help on my last problem now solved. What i am doing is building a job site and it needs info put in from job seekers regarding their qualifications. Some will have 2 some may have 10 and so on. I need to set up a system that I can put say 10 text boxes in a form that can then go in a MySQL. I only want the filled out boxes to go into the database and not the ones left blank. I have no idea as to where to start with but I think I need to loop through until it comes to the last filled out box but not enter the blank text boxes. i have no idea where to start on this one so if any one has thoughts on this it would be great. Thank you all for your help in the past. i am a student and trying to figure out why this is not working for me i am trying to pull from my .txt file and add the lines. $numOrders should be 20 and $numCopies should be 52. it keeps telling me --Warning: feof() expects parameter 1 to be resource, string given on line 25. i really am having big trouble trying to understand how to use the while loop for this. any help would be great. here is my html code <html> <head> <title>Software1</title> <link rel ="stylesheet" type="text/css" href="sample.css" /> </head> <body> <h1>SOFTWARE ORDERS: REPORT</h1> <form action = "software1Boles.php" method = "post" > <p><input type = "submit" value = "Display the Report" /></p> </form> </body> </html> my php code <?php $totalCopies = $_POST['totalCopies']; $totalOrders = $_POST['totalOrders']; $nextOrder = $_POST['nextOrder']; $totalCopies = 0; $totalOrders = 0; $orderFile = fopen("ordersBoles.txt", "r"); $nextOrder = fgets ($orderFile); while (!feof($nextOrder)) { list($totalCopies, $totalOrders) = explode (":", $nextOrder); if ($totalCopies >=1 and $totalCopies >=1) { $totalCopies = $totalCopies + $nextOrder; $totalOrder = $totalOrder + $nextOrder; } $nextOrder = fgets($orderFile);} fclose($orderFile); print ("<h1>SOFTWARE ORDERS: REPORT</h1>"); print ("<p>TOTAL COPIES ORDERED: $totalCopies</p>"); print ("<p>TOTAL ORDERS: $totalOrders</p>"); ?> </body> </html> and my .txt file 1 Linux:1 2 Macintosh:1 3 Windows:1 4 Macintosh:1 5 Macintosh:2 6 Linux:5 7 Macintosh:10 8 Windows:10 9 Macintosh:1 10 Windows:1 11 Windows:1 12 Linux:1 13 Macintosh:5 14 Linux:4 15 Windows:1 16 Macintosh:1 17 Windows:1 18 Linux:2 19 Macintosh:2 20 Windows:1 21 anything you can give me would help alot, thanks
I know this function will get one result, I suspect foreach is the wrong loop to use, should I be using a loop at all? Can someone correct me please.
public function getSites($site) {
$sql = "SELECT * FROM website WHERE website_id = ?";
$stmt = $this->connect()->prepare($sql);
$stmt->execute($site)
$siten = $stmt->fetch();
foreach ($siten as $row) {
$title = $row["website_title"];
$wname = $row["website_name"];
$image1 = "header.jpg";
$metadesc = $row["website_description"];
$wurl = $row["website_url"];
$gtag = $row["website_gtag"];
$gmap = $row["website_map"];
$wcss = $row["website_css"];
}
}
Edited February 23 by guymclarenza Hi all, I am desperately in need of some help here. I have been troubleshooting these codes for days, and I have posted this similar question quite a couple of times, and there is no answer from anyone... I am really in a bad shape now. Could someone please enlighten me to my problem? I have created 2 while loops...apparently the 2nd while loop overwrites the 1st while loop record. Meaning to say...1st while loop generates values of 'Math' 'Eng' 'Chi' 'Sci' AND store it in $subject_data, createLevelCheckboxes($subject_data, $level_data, 5); Apparently, the 2nd while loop takes only the last record 'Sci' from $subject_data and continues the looping. Which gives me results like Level 1 Sci Level2 Sci Level3 Sci I would like to attain something like.... Level 1 Math Level2 Eng Level3 Chi Level4 Sci Is there any reset which I need to do? while($data = mysqli_fetch_array($sql)) { if($current_level_id != $data['level_id']) { $checkboxes .= createLevelCheckboxes($subject_data, $level_data, 5); $current_level_id = $data['level_id']; $subject_data = array(); } //Add the current record to the $level_data array $subject_data[] = $data; } while($data1 = mysqli_fetch_array($sql1)) //Iterate throug the DB results { $checkboxes .= createLevelCheckboxes($subject_data, $level_data, 5); $level_data = array(); $level_data[] = $data1; } $checkboxes .= createLevelCheckboxes($subject_data, $level_data, 5); Hey everyone, Been a while since I posted. I hope everyone is doing well. I've built a couple of for() loops into my program and I'm getting some inconsistent results. The first loop I made was just a simple counter looking like this: Code: [Select] <select name="event_name"> <?php for($x = 1; $x <= 50; $x++){ if($x < 10){ echo "<option value=\"$x\">Event 0$x:"; echo "</option>"; } else{ echo "<option value=\"$x\">Event $x:"; echo "</option>"; } } ?> </select> This code works perfect. The 1st entry in my drop down list is event 1, then event 2 etc. now i have basically the same code on the another selection: Code: [Select] <select name="date" <?php for($x = 1; $x <= 24; $x++){ if($x < 10){ echo "<option value=\"$x\">0$x:00 EST"; echo "</option>"; } else{ echo "<option value=\"$x\">$x:00 EST"; echo "</option>"; } } ?> </select> however the generated code on this call starts with a result on 2 instead of 1 giving me 02:00 EST instead of 01:00 EST. I'm sure I could work around this by declaring some additional variables, but i'm just trying to figure out why i'm seeing different results between these two loops? any thoughts? thanks in advance for your help Hi, I'm trying to create a script that imports a CSV file but gives the user 3 options: 1. If Exists Update 2. If Exists Keep Both 3. If Exists Ignore New The keep both is easy, I just insert everything without checks. However, the other 2 are a little bit tricky (in my mind anyway). I've been told I could create loops and that there isn't any easy way to do this with MySQL. I cannot use ON DUPLICATE KEY because the column that I'm checking cannot be unique (because I have the keep both option). Is it efficient in PHP to create a loop that checks each row to see if it exists? I'm a little hesitant because the files could be big and I'm not sure how efficient PHP is with CPU and memory resources. The App I'm making is designed to run in a business environment but it may run on servers that are handling more than one thing (not just web services). If anyone could give me a few pointers I'd be most grateful. Thanks. |
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