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<?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; $j++) { if($result = getSimilarSubstring($a, substr($b, $j, $i))) { return $result; } } } return ''; } //$word_a = "superman"; //$word_b = "stermastein"; $word_a = 'afk'; $word_b = 'fk'; var_dump(getSimilarSubstring($a, $b));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $a in /in/U0ejN on line 33 Warning: Undefined variable $b in /in/U0ejN on line 33 Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /in/U0ejN on line 4 string(0) ""
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $a in /in/U0ejN on line 33 Warning: Undefined variable $b in /in/U0ejN on line 33 string(0) ""
Output for 5.0.4 - 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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: a in /in/U0ejN on line 33 Notice: Undefined variable: b in /in/U0ejN on line 33 string(0) ""
Output for 7.3.32 - 7.3.33
string(0) ""
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: a in /in/U0ejN on line 33 Notice: Undefined variable: b in /in/U0ejN on line 33 string(0) ""
preferences:
256.29 ms | 402 KiB | 354 Q