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JavaScript equivalent of PHP's in_array()

... notice you wanted to see if an array was inside another. According to the PHP documentation this is the expected behavior of PHP's in_array: $a = array(array('p', 'h'), array('p', 'r'), 'o'); if (in_array(array('p', 'h'), $a)) { echo "'ph' was found\n"; } if (in_array(array('f', 'i'), $a)) {...
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What's better at freeing memory with PHP: unset() or $var = null

... name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the script would run out of memory, whatever occurs first. If you are doing $whatever ...
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How to allow to accept only image files?

...ttp://www.w3schools.com/tags/att_input_accept.asp http://www.w3schools.com/php/php_file_upload.asp share | improve this answer | follow | ...
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Difference between float and double in php?

... There is no difference in PHP. float, double or real are the same datatype. At the C level, everything is stored as a double. The real size is still platform-dependent. See the manual for more details: http://www.php.net/manual/en/language.types.flo...
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What does yield mean in PHP?

...reach (xrange(1, 10) as $key => $value) { echo "$key => $value", PHP_EOL; } This would create the following output: 0 => 1 1 => 2 … 9 => 10 You can also control the $key in the foreach by using yield $someKey => $someValue; In the generator function, $someKey is whate...
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Reference: Comparing PHP's print and echo

What is the difference between PHP's print and echo ? 1 Answer 1 ...
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What Are the Differences Between PSR-0 and PSR-4?

...rc/, with PSR-0 it means it will look for Acme\Foo\Bar in src/Acme/Foo/Bar.php while in PSR-4 it will look for it in src/Bar.php, allowing for shorter directory structures. On the other hand some prefer to have the full directory structure to clearly see what is in which namespace, so you can also s...
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submitting a GET form with query string params and hidden params disappear

...ntains the target, where the form should be processed? like: action="index.php?site=search". I'm not sure, if putting the GET parameter in hidden input fields is an god idea. – The Bndr Aug 24 '17 at 13:09 ...
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Facebook Architecture [closed]

...g/post/358 You can use HipHop yourself: https://github.com/facebook/hiphop-php/wiki But if you ask me it's a very ambitious and probably time wasting task. Hiphop only supports so much, it can't simply convert everything to C++. So what does this tell us? Well, it tells us that Facebook is NOT full...
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Why does PHP consider 0 to be equal to a string?

... This is due to how PHP does the comparison operation that the == comparison operator denotes: If you compare a number with a string or the comparison involves numerical strings, then each string is converted to a number and the comparison p...