PHP readlink() Function – Description, Parameters, Return Value, and Example
This article explains PHP's readlink() function, detailing its purpose of returning a symbolic link's target, the required path parameter, return behavior on success or failure, and provides a concise example demonstrating its usage.
readlink() returns the target that a symbolic link points to.
In PHP, string readlink(string $path) works like the C function of the same name, returning the contents of the symbolic link.
Parameter $path – the path of the symbolic link.
Return value
On success, the function returns the linked path as a string; on failure it returns FALSE.
Example
<?php
// output e.g. /boot/vmlinux-2.4.20-xfs
echo readlink('/vmlinuz');
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