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How do I get a file extension in PHP?

... theirs is better because they have a built-in function to do that and not PHP (I am looking at Pythonistas right now :-)). In fact, it does exist, but few people know it. Meet pathinfo(): $ext = pathinfo($filename, PATHINFO_EXTENSION); This is fast and built-in. pathinfo() can give you other in...
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Getting the first character of a string with $str[0]

... Does PHP $str[0] take into account that there can be 2Byte long chars? UTF and such? (even though substr() does not help with it either!) – Tomer W Jun 26 '13 at 13:29 ...
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Is there any difference between __DIR__ and dirname(__FILE__) in PHP?

...7) But, there are at least two differences : __DIR__ only exists with PHP >= 5.3 which is why dirname(__FILE__) is more widely used __DIR__ is evaluated at compile-time, while dirname(__FILE__) means a function-call and is evaluated at execution-time so, __DIR__ is (or, should be) faste...
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How can I remove 3 characters at the end of a string in php?

How can I remove 3 characters at the end of a string in php? "abcabcabc" would become "abcabc"! 3 Answers ...
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How to Debug Variables in Smarty like in PHP var_dump()

... You can use {php} tags Method 1 (won't work in Smarty 3.1 or later): {php} $var = $this->get_template_vars('var'); var_dump($var); {/php} Method 2: {$var|@print_r} Method 3: {$var|@var_dump} ...
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Logical Operators, || or OR?

...nlike many other languages where they return the last value checked. So in PHP (27 || 0) returns true, not 27. – TextGeek Sep 15 '17 at 15:32 ...
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Getting visitors country from their IP

... via their IP... Right now I'm using this ( http://api.hostip.info/country.php?ip= ...... ) 29 Answers ...
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How can I parse a JSON file with PHP? [duplicate]

I tried to parse a JSON file using PHP. But I am stuck now. 16 Answers 16 ...
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What's the difference between :: (double colon) and -> (arrow) in PHP?

There are two distinct ways to access methods in PHP, but what's the difference? 6 Answers ...
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Warning “Do not Access Superglobal $_POST Array Directly” on Netbeans 7.4 for PHP

I've got this message warning on Netbeans 7.4 for PHP while I'm using $_POST , $_GET , $_SERVER , .... 5 Answers ...