Online PHP editor | output for FJ5ll

@ 2018-09-10T11:26:55Z

<?php
/* what I want to achieve*/
$rules= [
    'title' => 'required|min:2|max:5',
    ];
///////////////////////////////////////////    
    
$types = ['min' => 2, 'max' => 5, 'required'=> 1]; 

function ruleTypes(array $types){
    $arr = [];
    foreach($types as $key => $value) {
        $arr[] = $key . ':' . $value;
    }
    return implode('|', $arr);
}

$arrayOfRules = [
    'title' => ruleTypes($types),
    ];


var_dump($arrayOfRules);

Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: array(1) { ["title"]=> string(22) "min:2|max:5|required:1" }
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(1) { ["title"]=> string(22) "min:2|max:5|required:1" }

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