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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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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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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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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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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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Is there a PHP function that can escape regex patterns before they are applied?

...our regex, commonly a forward slash (/) - will not be escaped. You will usually want to pass whatever delimiter you are using with your regex as the $delimiter argument. Example - using preg_match to find occurrences of a given URL surrounded by whitespace: $url = 'http://stackoverflow.com/questio...
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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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Preserve Line Breaks From TextArea When Writing To MySQL

... Out of all the answers, this one is least concise – JacobRossDev Aug 14 '15 at 21:04 add a comment ...