How to check if file exists in PHP?

@addison use file_exists() function to check if file exists or not in PHP, code:

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<?php

$path = '/path/to/file.txt';

if (file_exists($path)) {
    echo "file exists";
}

@addison 

In PHP, you can check if a file exists using the file_exists() function. Here's an example:

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$filename = 'path/to/file.txt';

if (file_exists($filename)) {
    echo "File exists!";
} else {
    echo "File does not exist!";
}

In this example, you need to specify the file path and name in the $filename variable. The file_exists() function returns true if the file exists and false if it doesn't. You can then use an if-else statement to perform different actions based on the result.