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<?php function edit_distance_ond($str1 ,$str2){ $array = array(); $x = 0; $y = 0; $offset = strlen($str1); echo $offset; $array[$offset + 1] = 0; for($D = 0; $D <= count($str1) + count($str2); $D++){ for($k = -$D; $k <= $D; $k += 2){ if($k == -$D || $k != $D && $array[$k-1+$offset] < $array[$k+1+$offset]) $x = $array[$k+1+$offset]; else $x = $array[$k-1+$offset] + 1; $y = $x - $k; while($x < count($str1) && $y < count($str2) && $str1[$x] == $str2[$y]){ $x++; $y++; } $array[$k+$offset] = $x; if($x >= count($str1) && $y >= count($str2)) return $D; } } return -1; } $a = "test"; $b = "test2"; $edo = edit_distance_ond($a,$b); echo $edo; ?>
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
4 Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, string given in /in/l6YBl:9 Stack trace: #0 /in/l6YBl(29): edit_distance_ond('test', 'test2') #1 {main} thrown in /in/l6YBl on line 9
Process exited with code 255.
Output for 8.0.0 - 8.0.9
4 Fatal error: Uncaught TypeError: count(): Argument #1 ($var) must be of type Countable|array, string given in /in/l6YBl:9 Stack trace: #0 /in/l6YBl(29): edit_distance_ond('test', 'test2') #1 {main} thrown in /in/l6YBl on line 9
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
4 Warning: count(): Parameter must be an array or an object that implements Countable in /in/l6YBl on line 9 Warning: count(): Parameter must be an array or an object that implements Countable in /in/l6YBl on line 9 Warning: count(): Parameter must be an array or an object that implements Countable in /in/l6YBl on line 16 Warning: count(): Parameter must be an array or an object that implements Countable in /in/l6YBl on line 16 Warning: count(): Parameter must be an array or an object that implements Countable in /in/l6YBl on line 16 Warning: count(): Parameter must be an array or an object that implements Countable in /in/l6YBl on line 21 Warning: count(): Parameter must be an array or an object that implements Countable in /in/l6YBl on line 21 0
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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
40
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