Php Tutorial Include Function ETznj OMb C - Complete Information & Details

Web Reference: If the file is included twice, PHP will raise a fatal error because the functions were already declared. It is recommended to use include_once instead of checking if the file was already included and conditionally return inside the included file. (PHP 4, PHP 5) The include statement includes and evaluates the specified file. The documentation below also applies to require. Files are included based on the file path given or, if none is given, the include_path specified. The problem with using include() within a function is that: function include2() { include 'file2.php'; file1.php will have global scope. file2.php 's scope is local to the function include2. Now all functions are global in scope but variables are not. I'm not surprised this messes with include_once.

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