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PHP - Global In A Function Inside A Function Does Not Work?
When I put this chunk of code into it's own function:
function fetch_all ($dbc, $query) { include ('knuffix_list_func.php'); pagination_start ($dbc, $query); $offset = $pag_array[0]; $rows_per_page = $pag_array[1]; $query = $query . " LIMIT $offset, $rows_per_page"; echo "test query: " . $query; knuffix_list ($query, $dbc); pagination_end ($pag_array); } And when I echo out the query as you can see in the example, then I notice that the variables $offset and $rows_per_page never get appended. I set the variable $pag_array to a global inside the function pagination_start(). It usually works when I DON'T wrap a function around this chunk of code, but if I do wrap a function around everything then the global suddenly won't work anymore. Btw, this also won't work if I wrap a function around the function DECLARATIONS. Any ideas, how I could make it work? Similar TutorialsI need $row['con_id'] outside the function so I can put it into a query, but simply putting global in front of it won't work. What would be the right way to do? This portion of code is INSIDE a function: //Loop through the array of data while ($row = mysqli_fetch_array ($data)) { echo "<table padding='0' margin='0' class='knuffixTable'>"; echo "<input type='hidden' name='con_id' value='<?php echo " . $row['con_id'] . "; ?>' />"; echo "<tr><td width='65px' height='64px' class='avatar_bg' rowspan='2' colpan='2'><img src='$avatar_path' alt='avatar' /></td><td class='knuffix_username'><strong>" . $user_name; echo "</strong><br />" . $row['category'] . " | " . date('M d, Y', strtotime($row['contributed_date'])) . "</td></tr><tr><td>"; echo "<form action='' method='post'> <input type='submit' name='plusVote' value='Y' /> <input type='submit' name='minusVote' value='N' /> </form></td><td class='votes'>Y[ - ] | N[ - ]</td></tr>"; echo "<tr><td class='knuffix_name' colspan='3'><strong>" . htmlentities($row['name']) . "</strong><br /></td></tr>"; echo "<tr><td colspan='2' class='knuffix_contribution'><pre>" . $row['contribution'] . "</pre><br /></td></tr>"; echo "</table>"; The PHP documentation does not show any examples how to GLOBALIZE a mysqli function. I'd need a way to use $row['con_id'] outside the function for the voting script I'm writing. Thanks for the suggestions. Hello all, I have some piece of code that is nested like this $variable = 'This is a global argument'; function parentFunction($variable) { function childFunction() { echo 'Argument of the parent function is '.$GLOBALS['variable']; } childFunction(); } parentFunction(5); What I want to know is - Is there a way to access a variable from the parent function without passing arguments to the child function? (Something like how classes have parent::?). I don't want to use $GLOBALS because it might cause some variable collision, and I didn't want to pass arguments because incase I decide to change the arguments in the parent function I'd have to do it in the child function aswell. From my searching around in the Internet it seems like this is not possible, but if theres a slight chance that there might be something out there, i'm willing to give it a shot . Thanks in advance im using a function which connects to a db called 'comments' and then inside that function i again called another function that will connect to the db 'main' to get avatars.... but as i put Code: [Select] mysql_select_db("main") or die(mysql_error()); on the new function, the original function stops to fetch rows. i tried to remove "mysql_select_db("main") or die(mysql_error());" and used the new function to return some text only and it worked, so i guess the connection to the db was the problem... i tried doing Code: [Select] mysql_query("SELECT * FROM main.avatar INNER JOIN main.list ON main.avatar.title=main.list.id WHERE main.avatar.page_id='$id'"); but it also didnt work Hello I've have read that global variables should not be used. so if i have 2 .php files: index.php - main content php file sitefunctions.php - php functions site file on my index.php page i have the following (an example of my problem): <?php displayError($errorID); ?> and in the sitefunctions.php file i have the following (an example of my problem): <?php function displayError($errorID) { if($errorID == 1) { echo "Password Failure"; } else { echo "Other Failure"; } } ?> now that works but since when first accesing that page the $errorID is not set then i get an error. How can i achieve this without first setting a blank $errorID global variable? Thanks I run these functions to find the key of a given element inside an array. Like so; $ban_ip_file = file("ip_file.txt"); foreach($ban_ip_file as $key => $value) { $value = trim($value); if($value == $ip_from_form)// passed to page by a form $set = $key; } How do I make $set available for testing and file writing further down the script? Tried assigning global $set; just above the $set=$key; ----but it did not work. Hello, my global variable is getting whacked (defined null or being undefined) after a function call. I'm not sure if it's happening when leaving the function that assigns it or when the form is "posted", or something else. Code: [Select] <? //global variables $globalVarString = ""; //function definitions function displayResults() { global $globalVarString; if ($globalVarString == "") {displayForm("please enter your search string again");} else {displayForm("you typed: $globalVarString");} } function getResults($searchInput) { global $globalVarString; $globalVarString = $searchInput; //give status ?> <html><head><title>Search</title></head><body> <form action="<?=$_SERVER['PHP_SELF']?>" method="post"> Thanks for entering your data (<? echo "$globalVarString" ?>).<br><br>Please press the submit button to process your data    <input type="Submit" value="Submit" name="processQuery"> </form></body></html> <? } function displayForm($message) { //prompt for input ?> <html><head><title>Search</title></head><body> <form action=" <? $_SERVER['PHP_SELF'] ?>" method="post"> <h3>Please enter your search <input type="text" name="searchString">    <script type="text/javascript">document.forms[0].searchString.focus();</script> <input type="Submit" value="Submit Query" name="searchQuery"></h3> </form> <? if (!$message == ""){echo "<br>    <h4>" . $message . "</h4><br>";} ?> </body></html> <? } //main() if(array_key_exists('searchQuery', $_POST)) {getResults($_POST['searchString']);} elseif (array_key_exists('processQuery', $_POST)) {displayResults();} else {displayForm("");} ?> Hey Before I start playing around with some code I want to know if it is possible to call a function inside a while loop that will call echo a some stuff then return to the loop it got called by? thanks I have included language file and function file in my index.php
include 'includes/functions.php'; include 'languages/english.php';english.php contains <?php $lang['success']['a'] = 'Settings have been updated.'; $lang['error']['b'] = 'Database error. Please try again later!'; ................................. ?>functions.php
<?php
function testFunction($id, $settings, $db){
$query = 'UPDATE table_name SET a = a + :a WHERE id = :id';
$update = $db->prepare($query);
$update->bindParam(':a', $settings['a'], PDO::PARAM_INT);
$update->bindParam(':id', $id, PDO::PARAM_INT);
$success = $update->execute();
if($success){
print $lang['success']['a'];
}else{
print $lang['error']['b'];
}
}
.................................................
?>
Now if i print testFunction(); i got Undefined variable: lang in ............. If i include 'languages/english.php'; in testFunction() then everything works. Any other way to make $lang working without including language file in testFunction(). (Sorry for my bad english)
print testfunction(2, $settings, $db); Hi, I'm an novice/intermediate PHP prgogrammer, so excuse me if this is a stupid question. I have one php program that consist of a few functions. Inside the function taht is the starting point I pickup a few entries from a MYSQL database, and display those in my html page. I wish to dynamically put a link on those entries that makes it possible for the users to click those entries an get directed to other functions inside this very same PHP program WITH a parameter. The parameters that should accompany the url/link into the selected function to be able to select apropriate records from the mysql tables. Any hints and tips for this would be highly appreciated! Kind Regsrds, Terje Hvidsten. Hi Everyone. I'm working on a form, that allows the user to select the country / county / area where they are from. I am doing this using: - mysql database store the locations in - PHP OOP, to pull this information from the database - AJAX/Javascript to only show the next dropdown, once the first dropdown has been selected. Example: select country then the county dropdown will appear, select county then the area/town will appear. However, the first drop down for country is placed directly on to the page. So the javascript works fine. but the second dropdown is placed in to a PHP function, and the javascript seems to no longer want to work. CODE: Code: [Select] //////////////// CODE FOR COUNTRY /////////// if(isset($_REQUEST['country'])) { echo ' <div class="labelleft">County / State:</div> <div class="fieldleft"> <div > <select name="county" id="county" onchange="javascript:AJAXQuery("lib/search.php?town="+this.value, "tw", "")"> <option value="0">Select County</option> <option value="0">-------</option>'; $countyList = Area_county::find_country_id($_REQUEST['country']); foreach($countyList as $countyLists){ $county_id = $countyLists->id; $county_list = $countyLists->county; echo '<option value="'.$county_id.'">'.ucwords($county_list).'</option>'; } echo ' </select> </div> </div> <div class="clear"></div>'; } Any ideas? Thanks I dont know why I'm having so many problems with this. I need to get a variable that defined in an included file inside of a function I've got this Inside file.php I've got the $variable1 and $variable2 defined (they're dynamic/different to each user) include('file.php'); function foo() { GLOBAL $variable1, $variable2; echo $variable1; echo $variable2; } foo(); Yet it outputs nothing? If I Include file.php right inside of the function it works however. Any idea? Hi I am trying to use the nl2br function like this
while ($row = mysqli_fetch_array($query)) {
//May need this later to output pictures
// $imageURL = 'upload/'.rawurlencode($row["filename"]);
echo
" <div class='divTableRow'>
<div class='divTableCell'>{$row['User']} ;</div>
<div class='divTableCell'>nl2br({$row['CommentText']});</div>
</div>
\n";
}
However the output just looks like the attached picture. When I check in the sql db I can see the line breaks when doing a select * from Table ;
I'm using this line a lot on my site. It would be nice if I didn't have to change it 10 times over when I decide to change something. Can I wrap that into a Function and use it in a While loop? echo '<div><a href="/tag/'. strtolower($nameFirst) . '-' . strtolower($nameLast) .'">'. $nameFirst . ' ' . $nameLast .'</a>, '; I have this above it in the While loop.
$nameFirst = $row['nameFirst'];
My function predictably looks like this...
function player_name () {
echo '<div><a href="/tag/'. strtolower($nameFirst) . '-' . strtolower($nameLast) .'">'. $nameFirst . ' ' . $nameLast .'</a>, ';
}
I thought this would be fairly straightforward but for some reason isn't working. I have an array built from some MySQL data: - Code: [Select] $all_products[1] = array( "title"=>"widget", "product_code"=>"wid-123", "colour"=>"blue"); $all_products[2] = array( "title"=>"thingy", "product_code"=>"thi-345", "colour"=>"red"); This works fine when used like: - echo 'Product #1 is a ' . $all_products[1]['colour'] . $all_products[1]['title'] . ', code: ' . $all_products[1]['code']; Gives: "Product #1 is a blue widget, code: wid-123" However, if I do this: - function showproductinfo($thisproduct) { echo 'Product #' . $thisproduct . ' is a ' . $all_products[$thisproduct]['colour'] . $all_products[$thisproduct]['title'] . ', code: ' . $all_products[$thisproduct]['code']; } showproductinfo(1); It gives nothing Can I use a variable passed via a function as the array key in this way? If so, how? And if not, what's the best way to do what I, trying to do? hello. i have two functions that are not working because i cant seem to input the php and java correctly.. could someone help please. how do i put these lines into a function: 1 - Code: [Select] function applyBox() { echo ' <div id="apply"> <h3><b><span class="arial18_GRN">Apply NOW</span> to become a<br>BusinessMobiles.com Affiliate</b></h3> <p class="applyText">Drive quality traffic to one of our<br>partners and get paid for it.</p> <a href="#" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Apply','','image/callsToAction/applyButton2.jpg',1)"> <img src="image/callsToAction/applyButton1.jpg" class="applyButton" alt="Apply" name="Apply" width="137" height="36" border="0"></a> </div> '; } this part is not working: onMouseOver="MM_swapImage('Apply','','image/callsToAction/applyButton2.jpg',1)"> i can see that the ' is breaking it. i tried putting .'s but it didn't work : onMouseOver="MM_swapImage('.Apply.','..','.image/callsToAction/applyButton2.jpg.',1)"> 2 - this form: Code: [Select] <div class="form"> <form name="Form" method="post" action="<?PHP echo $_SERVER['PHP_SELF']; ?>"> <input name="submit" type="hidden" value="submit" /></input> <input type="text" class="inputField" name="Uname" id="Uname" value="'.$Uname.'" onfocus="clearUname()"></input> <input type="text" class="inputField" name="PW" id="PW" value="'.$PW.'" onfocus="clearPW()"></input> <input type="image" class="submit" src="image/wrapper/submit.jpg" value="Submit" alt="login" width="36" height="20" border="0" /></input> </form> this part is not working : <form name="Form" method="post" action="<?PHP echo $_SERVER['PHP_SELF']; ?>"> i tried: <form name="Form" method="post" action="'.echo $_SERVER['PHP_SELF'].'"> but no luck. any suggestions ???? thanks ricky I have the array defined and print_r (outside the function is show what I need...) However, I need to somewhay pass those three arguments - name, price, shipping (keys & values) into the "all_products" function and assign (inside the function) each element to a variable {name, price, shipping}. Code: [Select] function all_products($key,$value) { # This is where I'm lost - I know the values are passed to the function but how to I assign them to below variable? echo "$name"; echo "$price"; echo "$shipping"; // Products array defined to send values into "all_products" function & loop to display item name & individual pricing (using WHILE LOOP) $products = array('Product1' => array ( 'name' => 'item one', 'price' => '30.00', 'shipping' => '0.00'), 'Product2' => array ( 'item two', 'price' => '19.50', 'shipping' => '0.10'), 'Product3' => array ( 'item three', 'price' => '21.99', 'shipping' => '0.10') ); while (list($keys, $values) = each($products)) { while (list($k, $v) = each($values)) echo "Checking Looped Data Outside Function: <strong>$k: </strong> $v<br/>"; # echo "<pre>"; # print_r($value); # echo "</pre>"; # Trying to send array elements into "all_products" function & echo (name, price, shipping) keys and values inside that function all_products($k,$v); } I'm trying to call a function inside an iFrame inside Wordpress, and I'm getting this error message: Code: [Select] Fatal error: Call to a member function get_results() on a non-object in What is this supposed to mean? By the way the function DOES work when it's NOT called inside the iFrame, but as soon as I call it inside the iFrame I get the error message. Why is that? Cant get it to work!! here is the code , how do i fix this? Code: [Select] <script type="text/javascript"> function popup(var) { alert(var); } </script> <?php $calendar.= "<td class='calendar-day'><div style='position:relative;height:100px;' onclick='popup('hello')'>"; ?> I am trying to pass a variable from inside of a function in a file that is included eg include.php Code: [Select] <? function noms(){ $foobar = "apples"; } ?> main.php Code: [Select] <? include("include.php"); noms(); echo "these ". $foobar. " are most delicious... OM NOM NOM"; ?> I am essentially using a include file for a mysql connection and based on the connection outcome i am either setting a value to true or false. It prints "Connected succesfully" and what not just fine, but, after that it wont pass on the variables data. I know its the function because, it passes the data if i put the variable before the function... i just dont get it.. any help would be great. Thanks. Ansel Hello all, I have a 14 column csv that I load into an array, retrieving only the required fields, load the array into columns and perform a sort: Code: [Select] foreach ($array as $key => $row) { $firstname[$key] = $row["firstn"]; $lastname[$key] = $row["lastn"]; $address1[$key] = $row["addr1"]; $address2[$key] = $row["addr2"]; $address3[$key] = $row["addr3"]; $city[$key] = $row["cit"]; $stateprov[$key] = $row["state"]; $country[$key] = $row["cntry"]; $membernumber[$key] = $row["num"];} array_multisort($membernumber,$lastname,$firstname,$address1,$address2,$address3,$city,$stateprov,$country,$array);When I pass say the first three letters of a last name ($find = "smi"), all records matching the search criteria are returned: Code: [Select] foreach ($array as $key => $row) { if (strncasecmp($find, $lastname[$key], strlen($find)) == 0) { echo "<tr><td>" . $firstname[$key] . "</td>"; echo "<td>" . $lastname[$key] . "</td>"; echo "<td>" . $address1[$key] . "</td>"; echo "<td>" . $address2[$key] . "</td>"; echo "<td>" . $address3[$key] . "</td>"; echo "<td>" . $city[$key] . "</td>"; echo "<td>" . $stateprov[$key] . "</td>"; echo "<td>" . $country[$key] . "</td>"; echo "<td>" . $membernumber[$key] . "</td></tr>" . chr(13); }}}So far so good. However, I'd like to put the search part into a function so I can call it a number of times without having to reload the entire csv: Code: [Select] function FindMember() { foreach ($array as $key => $row) { if (strncasecmp($find, $membernumber[$key], strlen($find)) == 0) { echo "<tr><td>" . $firstname[$key] . "</td>"; echo "<td>" . $lastname[$key] . "</td>"; echo "<td>" . $address1[$key] . "</td>"; echo "<td>" . $address2[$key] . "</td>"; echo "<td>" . $address3[$key] . "</td>"; echo "<td>" . $city[$key] . "</td>"; echo "<td>" . $stateprov[$key] . "</td>"; echo "<td>" . $country[$key] . "</td>"; echo "<td align='right'>" . $membernumber[$key] . "</td></tr>" . chr(13); }}}}The search criteria would come from a second txt file with every line containing 2 numbers, separated by a comma: Code: [Select] foreach ($lines as $member => $numbers) { $exploded = explode(",", $numbers); $find = $exploded[1]; FindMember();here $exploded[1] corresponds to $membernumber[$key], so this is where I would call the function, but this is where I run into trouble, nothing gets returned. Does this have something to do with the scope of variables inside a user-defined function? I'd appreciate it if someone could point me in the right direction. TIA |
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