How to obtain PHP function documentation

How to obtain PHP function documentation: Check the official PHP manual. Use the live documentation access provided by the IDE. Call the php_help() function to get brief information. Take advantage of the code editor's code hints feature.

How to obtain PHP function documentation

Introduction
PHP documentation is helpful for understanding and using PHP functions Crucial. This article will introduce various ways to obtain documentation for PHP functions.

1. PHP Manual
The most comprehensive PHP documentation is the official [PHP Manual](https://www.php.net/). It contains detailed descriptions, syntax, parameters and examples of all PHP functions.

2. IDE documentation
Many IDEs (Integrated Development Environments) provide real-time access to PHP function documentation. For example:

• PHPStorm: Press Ctrl Q and enter the function name.
• Visual Studio Code: To install the PHP IntelliSense extension, press Ctrl Shift Space.

3. Function Assistant
php_help() The function can display brief help information of the specified function and its parameter list. For example:

php_help('implode');

4. Code prompt
After typing the function name in the code editor, a code prompt may appear showing a documentation summary of the function.

Practical case
Suppose you need to obtain the documentation of the file_get_contents() function:

• PHP Manual : Visit https://www.php.net/manual/en/function.file-get-contents.php.
• PHPStorm: Type file_get_contents(), press Ctrl Q.
• Function Helper: Run php_help('file_get_contents') from the command line.
• Code Tip: Type file_get_contents() in the code editor and you may see a documentation summary of the function.

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