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Which version of CodeIgniter am I currently using?

...deIgniter version number. It's defined in: /system/codeigniter/CodeIgniter.php As of CodeIgniter 2, it's defined in /system/core/CodeIgniter.php For example, echo CI_VERSION; // echoes something like 1.7.1 share ...
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PHP parse/syntax errors; and how to solve them

... What are the syntax errors? PHP belongs to the C-style and imperative programming languages. It has rigid grammar rules, which it cannot recover from when encountering misplaced symbols or identifiers. It can't guess your coding intentions. Most impo...
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Remove empty array elements

...ments that are i.e. exact string '0', you will need a custom callback: // PHP 7.4 and later print_r(array_filter($linksArray, fn($value) => !is_null($value) && $value !== '')); // PHP 5.3 and later print_r(array_filter($linksArray, function($value) { return !is_null($value) && $...
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Anonymous recursive PHP functions

Is it possible to have a PHP function that is both recursive and anonymous? This is my attempt to get it to work, but it doesn't pass in the function name. ...
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What does a \ (backslash) do in PHP (5.3+)?

What does a \ do in PHP? 4 Answers 4 ...
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The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl

When I attempt to connect to a MySQL server from PHP, I see the following error: 1 Answer ...
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Javascript Equivalent to PHP Explode()

... This is a direct conversion from your PHP code: //Loading the variable var mystr = '0000000020C90037:TEMP:data'; //Splitting it with : as the separator var myarr = mystr.split(":"); //Then read the values from the array where 0 is the first //Since we skipped ...
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PHP Difference between array() and []

I'm writing a PHP app and I want to make sure it will work with no errors. 5 Answers 5...
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How to include() all PHP files from a directory?

In PHP can I include a directory of scripts? 12 Answers 12 ...
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PHP MySQL Google Chart JSON - Complete Example

...generating a Google Chart (pie, bar, column, table) using a combination of PHP and MySQL. I finally managed to get one example working. ...