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What is Autoloading; How do you use spl_autoload, __autoload and spl_autoload_register?

I am learning advanced PHP standards and trying to implement new and useful methods. Earlier I was using __autoload just to escape including multiple files on each page, but recently I have seen a tip on __autoload manual ...
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Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?

I have a PHP script that deals with a wide variety of languages. Unfortunately, whenever I try to use json_encode , any Unicode output is converted to hexadecimal entities. Is this the expected behavior? Is there any way to convert the output to UTF-8 characters? ...
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PHP array: count or sizeof?

To find the number of elements in a PHP $array , which is faster/better/stronger? 7 Answers ...
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GCM with PHP (Google Cloud Messaging)

How can I integrate the new Google Cloud Messaging in a PHP backend? 13 Answers 13 ...
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Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php

...the answer: Just add this line before the line where you get error in your php file ini_set('memory_limit', '-1'); It will take unlimited memory usage of server, it's working fine. Consider '44M' instead of '-1' for safe memory usage. ...
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PHP - Extracting a property from an array of objects

... If you have PHP 5.5 or later, the best way is to use the built in function array_column(): $idCats = array_column($cats, 'id'); But the son has to be an array or converted to an array ...
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PHP foreach change original array values

... In PHP, passing by reference (&) is ... controversial. I recommend not using it unless you know why you need it and test the results. I would recommend doing the following: foreach ($fields as $key => $field) { if (...
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PHP - Get bool to echo false when false

...rnate development is so so so much cleaner & stronger than even modest PHP systems. I could find plenty of people who were confused.. stackoverflow.com/questions/9042002/… but I couldn't find any reference as to a real reason for this design "feature". – Thomas W ...
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How to check whether mod_rewrite is enable on server?

... To check if mod_rewrite module is enabled, create a new php file in your root folder of your WAMP server. Enter the following phpinfo(); Access your created file from your browser. CtrlF to open a search. Search for 'mod_rewrite'. If it is enabled you see it as 'Loaded Modules' I...
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Convert from MySQL datetime to another format with PHP

...oking for a way to normalize a date into MySQL format, use the following $phpdate = strtotime( $mysqldate ); $mysqldate = date( 'Y-m-d H:i:s', $phpdate ); The line $phpdate = strtotime( $mysqldate ) accepts a string and performs a series of heuristics to turn that string into a unix timestamp. T...