PHP is_file() Function Usage and Example

PHP Filesystem Reference Manual

The is_file() function can check if the specified file is a normal file.

Syntax

bool is_file ( string $filename )

This function can return true if the filename exists and is a normal file, otherwise it returns false.

Example1

<?php
　　　$file = "/PhpProject/php/phptest.txt";
　　　if(is_file($file)) {
　　　　　　　echo("$file is a normal file");
　　　} else {
　　　　　　　echo("$file is not a normal file");
　　　}
?>

Output Result

/PhpProject/php/phptest.txt is a normal file

Example2

<?php
　　　var_dump(is_file("/PhpProject/simple.txt"))  .  "\n";
　　　var_dump(is_file("/PhpProject/php"))  .  "\n";
?>

Output Result

bool(false)
bool(false)

PHP Filesystem Reference Manual