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@ 2019-03-04T14:38:20Z

<?php

declare(strict_types=1);

function checkSharedKey($shared_key): bool {
    if (strlen($shared_key) != 32) {
        return false;
    }
    if (trim($shared_key) == "") {
        return flase;               
    }
    
    return true;
}

var_dump(checkSharedKey('                                '));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
trim: documentation ( source)

preferences:dark modelive previewkey bindings

166.02 ms | 405 KiB | 5 Q