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@ 2014-03-13T03:03:45Z

<?php
$facults = array('Леч. фак.' => 1, 'Пед. фак.' => 2, 'Стом. фак.' => 3, 'ВСО' => 4);
$dog = ',Леч. фак.,Пед. фак.,';
for ($i=1; $i < (substr_count($dog, ',')); $i++) { 
    echo $facults[((explode(',', $dog))[$i])];
}

Output
Performance
VLD
References
Branches

substr_count: documentation ( source)
explode: documentation ( source)

preferences:dark modelive preview

57.05 ms | 402 KiB | 5 Q