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@ 2022-09-22T12:50:09Z

<?php

$array = [
  125 => '3110 - with a string',
  128 => '3009 - keep a string',
  126 => '3111 - a string',
  121 => '3114 - be a string',
  122 => '3113 - last string',
];

function cmp($a, $b)
{
    
    return strcmp(trim(explode('-',$a)[1]) ,trim(explode('-',$b)[1]));
}


usort($array, "cmp");

print_r($array);

Output
Performance
VLD
References
Branches

strcmp: documentation ( source)
print_r: documentation ( source)
explode: documentation ( source)
trim: documentation ( source)
usort: documentation ( source)

preferences:dark modelive previewkey bindings

27.37 ms | 408 KiB | 5 Q