Compare a text with a multidimensional array with regular expressions

If I understand correctly, you have:

• two regular expressions within an associative array
• and any URL taken from an input

And from what you see, you want to verify if the URL of the input complies with the regular expressions that are inside your array.

So, one way to do it would be like this:

NOTE: I have modified the original code, evaluating only the link of the array, so that the code is more specific and the logic does not fail if in the future you decide to add more key pairs / value to that array.

<?php

$arg = array( 
                "vimeo"=>      array("link" => '/https?:\/\/[w\.]*vimeo\.[^\/]*\/([^?]*)/is' ),
                "dailymotion"=>array("link" => '/https?:\/\/[w\.]*dailymotion\.[^\/]*\/([^?]*)/is',),
            );

$input="https://www.dailymotion.com/is/video";
compararURL($input,$arg);

$input="https://www.dailymotionsss.com/is/video";
compararURL($input,$arg);

$input="https://www.vimeo.com/is/894regqvideo";
compararURL($input,$arg);

$input="https://www.example.com";
compararURL($input,$arg);



function compararURL($input,$arg){
    foreach ($arg as $k=>$v){
        if (preg_match($v["link"], $input)){
            echo "Hay coincidencias con: ".$v["link"]." ";
            echo $input.PHP_EOL;
        }else{
            echo "No hay coincidencias con ".$v["link"];
            echo " -> ";
            echo $input.PHP_EOL;
        }
    }
}
?>

Test results

No hay coincidencias con /https?:\/\/[w\.]*vimeo\.[^\/]*\/([^?]*)/is -> https://www.dailymotion.com/is/video
Hay coincidencias con: /https?:\/\/[w\.]*dailymotion\.[^\/]*\/([^?]*)/is https://www.dailymotion.com/is/video
No hay coincidencias con /https?:\/\/[w\.]*vimeo\.[^\/]*\/([^?]*)/is -> https://www.dailymotionsss.com/is/video
No hay coincidencias con /https?:\/\/[w\.]*dailymotion\.[^\/]*\/([^?]*)/is -> https://www.dailymotionsss.com/is/video
Hay coincidencias con: /https?:\/\/[w\.]*vimeo\.[^\/]*\/([^?]*)/is https://www.vimeo.com/is/894regqvideo
No hay coincidencias con /https?:\/\/[w\.]*dailymotion\.[^\/]*\/([^?]*)/is -> https://www.vimeo.com/is/894regqvideo
No hay coincidencias con /https?:\/\/[w\.]*vimeo\.[^\/]*\/([^?]*)/is -> https://www.example.com
No hay coincidencias con /https?:\/\/[w\.]*dailymotion\.[^\/]*\/([^?]*)/is -> https://www.example.com

One solution could be the following:

• Use foreach to iterate the array $arg
• Use preg_match to check if the value of $input meets the regular expression .

Example:

$arg = array(
    "vimeo" => array(
        "link" => '/https?:\/\/[w\.]*vimeo\.[^\/]*\/([^?]*)/is'
     ),
    "dailymotion" => array(
        "link" => '/https?:\/\/[w\.]*dailymotion\.[^\/]*\/([^?]*)/is',
    ),
);
$input = 'https://vimeo.com/channels/staffpicks/250383662';
$match = false;

// Por cada valor en $arg
foreach($arg as $site => $data) {

    // Si el valor de $input cumple la RE de sitio
    if (preg_match($data['link'], $input)) {
        $match = true;
        break;
    }
}

if ($match) {
    echo "Hay coincidencias";
} else {
    echo "No hay coincidencias";
    echo " -> ";
    echo $input;
}