In this PHP tutorial we'll walk you through the most popular file_exists php function.
According to various sources, the file_exists PHP function is the most popular PHP functions offered by the programming language.
This php function tutorial will tell you that the file_exists PHP function checks for the existance of a file or a directory and accepts one parameter that depicts the path to the file or directory. After we specify the parameter and execute the file_exists PHP function, it returns one of two values.
This is a php function with return value and the possible return values of this PHP function are either TRUE or FALSE.
Values are set as TRUE if the file or directory specified by the parameter exists, and false if it does not.
This php function with return value can also return a warning in the form of E_WARNING.
E_WARNING returns run-time warnings which aren't fatal errors without halting the execution of the PHP script.
This PHP function with parameters is often implemented into software projects or custom-built PHP functions to perform a specific task, and rarely used as a standalone PHP function. Regardless, this PHP function allows for quick and convenient checking whether a file exists or not if necessary.
The results of this function are stored in the file status cache, which can be cleared by utilizing the clearstatcache() function.
Do you use this PHP function in your PHP projects? Answer this question below, and until next time.
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