At the same time, the require() statement generates a fatal error and terminates the script. The only difference is that the include() statement generates a PHP alert but allows script execution to proceed if the file to be included cannot be found. In most cases, the require() statement works in the same way as the include() statement. As a result, it will issue an alert about the missing file while also showing the production. The Main.php file isn't in the same directory as the other files we've included. Include allows the script to proceed if the file is missing or inclusion fails, but require causes the script to halt, resulting in a fatal E_COMPILE_ERROR level error. The terms "include" and "require" are interchangeable. Since scripts do not execute if files are missing or misnamed, the require() function is recommended over include(). So, apart from how they treat error conditions, require() and include() are identical. The require() function produces a fatal error and stops the script's execution if there is a problem loading a file. The require() function copies all of the text from a given file into the file that uses the include function. The only difference is that if the file is not found, it prevents the script from running, while include does not. The PHP require function is similar to the include function, which is used to include files. php has been included with the help of line Output: In the above code, there are two files, that is. The below example code will demonstrate the concept of PHP include. While including the content of the included file will be displayed in the main file. Include is a keyword to include one PHP file into another PHP file. Easy to Edit: If you want to alter anything on a website, you can modify the source file used with all of the web pages rather than editing each file individually.Code Reusability: We may reuse HTML code or PHP scripts in several PHP scripts with the aid of the ‘include’ and ‘require’ build.It produces an alert if there is a problem loading a file however, the script will still run. The include() function copies all of the text from a given file into the file that uses the include function. This will help prevent the application's protection and reputation from being jeopardized if one key file is corrupted. Otherwise, always use the required declaration to include the main file in the flow of execution while coding Framework, CMS, or a complex PHP program. If the include statement appears, execution should continue and show users the output even if the include file is missing. Require will produce a fatal error (E_COMPILE_ERROR) and interrupt the script.Include in PHP will only generate an alert (E_WARNING), and the script will proceed.Except in the case of failure, the ‘include’ and ‘require statements’ are identical: This is of course a very basic replacement and does not take into account any flags which goes beyond the scope of this document.The ‘include’ or ‘require’ statement can be used to insert the content of one PHP file into another PHP file (before the server executes it). Here is something that can be used for making sure your PHP script works with PHP5 and PHP4: There is nothing really special about this function, except it saves your time (it basically calls fopen, fwrite and fclose). Will return false on failure, or the number of bytes written to the file. By default, without FILE_APPEND flag, function will overwrite file with given data. The flags are optional and can be FILE_USE_INCLUDE_PATH, FILE_APPEND and/or LOCK_EX. Int file_put_contents ( string filename, mixed data, ] ) String file_get_contents ( String filename ]]] )įile_put_contents() Note: It is used to only check variables, thus empty(trim($var)) will result in a parse error.įile_get_contents() Is more a language construct than a function, and can therefore be used without the parenthesis. Outputs data to the current stream (console, apache request etc.).
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