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Original purpose of ? [closed]

...purpose today because HTTP as we know it today is still, at least fundamentally, a stateless protocol. This use case was actually first described in HTML 3.2 (I'm surprised HTML 2.0 didn't include such a description): type=hidden These fields should not be rendered and provide a means for servers t...
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Can you use if/else conditions in CSS?

... your stylesheet with your favourite server-side language. If you're using PHP, serve a style.css.php file, that looks something like this: p { background-position: <?php echo (@$_GET['foo'] == 'bar')? "150" : "4"; ?>px 8px; } In this case, you will however have a performance impact, sinc...
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Downloading a large file using curl

... <?php set_time_limit(0); //This is the file where we save the information $fp = fopen (dirname(__FILE__) . '/localfile.tmp', 'w+'); //Here is the file we are downloading, replace spaces with %20 $ch = curl_init(str_replace("...
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MySQL query String contains

... Quite simple actually: mysql_query(" SELECT * FROM `table` WHERE `column` LIKE '%{$needle}%' "); The % is a wildcard for any characters set (none, one or many). Do note that this can get slow on very large datasets so if your database grow...
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Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?

... There is the beforeShowDay option, which takes a function to be called for each date, returning true if the date is allowed or false if it is not. From the docs: beforeShowDay The function takes a date as a parameter and must return an array with [0] equal to true/false indicating wh...
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jQuery AJAX cross domain

Here are two pages, test.php and testserver.php. 14 Answers 14 ...
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On delete cascade with doctrine2

...ple in order to learn how to delete a row from a parent table and automatically delete the matching rows in the child table using Doctrine2. ...
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Correct way to pass multiple values for same parameter name in GET request

... FWIW PHP doesn't support reading args like ?id=5&id=3. PHP would only read in one value for id here. If I remember correctly, it would have to look like this for it to work with PHP: ?id[]=5&id[]=3 – ...
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ie8 var w= window.open() - “Message: Invalid argument.”

...n you look at the official documentation page, you see that Microsoft only allows the following arguments, If using that argument at all: _blank _media _parent _search _self _top share | improve ...
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move_uploaded_file gives “failed to open stream: Permission denied” error

...ke the owner of those folders same as httpd process owner OR make them globally writable (bad practice). Check apache process owner: $ps aux | grep httpd. The first column will be the owner typically it will be nobody Change the owner of images and tmp_file_upload to be become nobody or whatever t...