Online PHP editor | output for YFtvv

@ 2018-02-11T11:29:33Z

<?php
$string="developer";
$consonants=[];
for($offset=0, $length=strlen($string); $offset<$length; ++$offset){  // iterate each letter of the string
    if(strpos('aeiou',$string[$offset])===false){  // isolate the consonants
        $consonants[]=$string[$offset];  // store the consonant
        $offsets[]=$offset;  // store the offset (aka indexed position of the consonant in the string)
    }
}
shuffle($consonants);  // shuffle the array of stored consonants

foreach($consonants as $index=>$consonant){  // iterate only the stored consonants
    $string[$offsets[$index]]=$consonant;  // reassign the consonants in their new positions
}

echo $string;

Output for 7.1.0, 7.1.8, 7.1.14: developer
Output for 7.1.12, 7.2.7: leredovep
Output for 7.1.10: lepedover
Output for 7.1.3, 7.2.13: vepeloder
Output for 7.2.10: lepedorev
Output for 7.2.9: vedepoler
Output for 7.1.1: develorep
Output for 7.1.4: repedovel
Output for 7.1.5: veledorep
Output for 7.1.2: velepoder
Output for 7.2.0: ledeporev
Output for 7.1.9: relevoped
Output for 7.1.11: repevoled
Output for 7.3.0: peredolev
Output for 7.2.6: redevopel
Output for 7.1.13: veperoled
Output for 7.2.8: derelovep
Output for 7.1.6: peledover
Output for 7.1.7: reledopev
Output for 7.1.25: ledevorep
Output for 7.2.2: relepodev
Output for 7.2.11: redevolep
Output for 7.2.1: velerodep
Output for 7.2.3: vepelored
Output for 7.2.4: pedelover
Output for 7.2.12: repelodev
Output for 7.2.5: derevopel
Output for 7.3.1: peleroved

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