<?php
function getSimilarSubstring($a, $b)
{
if(!strlen($a) || !strlen($b))
{
return '';
}
if(false!==strpos($a, $b))
{
return $b;
}
$length = strlen($b);
for($i=$length-1; $i>0; $i--)
{
for($j=0; $j<$length-$i; $j++)
{
if(false!==strpos($a, $result = substr($b, $j, $i)))
{
return $result;
}
}
}
return '';
}
$word_a = "foo";
$word_b = "foobar";
var_dump(getSimilarSubstring($word_a, $word_b));
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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 - 8.3.6
- string(3) "foo"
preferences:
335.53 ms | 406 KiB | 457 Q