PHP | SplFileInfo isLink() Function

The SplFileInfo::isLink() function is an inbuilt function of Standard PHP Library (SPL) in PHP which is used to check the given file is a link or not.

Syntax:

bool SplFileInfo::isLink( void )

Parameters: This function does not accept any parameter.

Return values: This function returns true on success or false on failure.

Below Programs illustrate the SplFileInfo::isLink() function in PHP:

Program 1:

<?php

// PHP Program to illustrate
// Splfileinfo::isLink() function

$file = new SplFileInfo("gfg.txt");
$gfg = $file->isLink();

// Print result
var_dump($gfg);
echo "</br>";

$file = new SplFileInfo(__FILE__);
$gfg = $file->isLink();

// Print result
var_dump($gfg);

?>

Output:

bool(false)
bool(false)

Program 2:

<?php

// PHP program to use array to check
// multiple files

$GFG = array(
    "dummy.php",
    "gfg_code.cpp",
    "html/",
    "frame.php"
);

foreach ($GFG as &$file_name) {

    // Create new SplFile Object
    $file = new SplFileInfo($file_name);

    $gfg = $file->isLink();

    // Print result
    var_dump($gfg);
    echo "</br>";

}
?>

Output:

bool(false)
bool(false)
bool(false)
bool(false) 

Reference: http://php.net/manual/en/splfileinfo.islink.php