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define() vs. const

In PHP, when do you use 11 Answers 11 ...
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How to post data in PHP using file_get_contents?

...Sending an HTTP POST request using file_get_contents is not that hard, actually : as you guessed, you have to use the $context parameter. There's an example given in the PHP manual, at this page : HTTP context options (quoting) : $postdata = http_build_query( array( 'var1' => 'some...
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is_null($x) vs $x === null in PHP [duplicate]

...someone strongly suggested that I use is_null() instead as it is specifically designed for the null-evaluation purpose. He also started talking about math or something. ...
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Simplest way to detect a mobile device in PHP

... @kavior.com Yes it can be faked, but we should allow people to fake if they wish... because that would be their intention, why stop people from doing what they specifically want (i.e. load the desktop version for some reason in particular)? – Nick St...
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Safely remove migration In Laravel

... I accidentally created a migration with a bad name (command: php artisan migrate:make). I did not run (php artisan migrate) the migration, so I decided to remove it. My steps: Manually delete the migration file under app/database/mig...
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PHP: If internet explorer 6, 7, 8 , or 9

...mp;& $B['v'] <= 8) { // Browsers IE 8 and below } else { // All other browsers } share | improve this answer | follow | ...
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How to [recursively] Zip a directory in PHP?

...ce), file_get_contents($source)); } return $zip->close(); } Call it like this: Zip('/folder/to/compress/', './compressed.zip'); share | improve this answer | ...
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PHP Session Fixation / Hijacking

...cker explicitly sets the session identifier of a session for a user. Typically in PHP it's done by giving them a url like http://www.example.com/index...?session_name=sessionid. Once the attacker gives the url to the client, the attack is the same as a session hijacking attack. There are a few way...
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Sanitizing strings to make them URL and filename safe?

...For example, when someone uploads a file I want to make sure that I remove all dangerous characters from the name. 23 Answe...
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When to use self over $this?

... $x = new Y(); $x->bar(); ?> The idea is that $this->foo() calls the foo() member function of whatever is the exact type of the current object. If the object is of type X, it thus calls X::foo(). If the object is of type Y, it calls Y::foo(). But with self::foo(), X::foo() is always ...