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  1. <?php
  2.  
  3. function test($a,$b,$ret=2) {
  4. 	for ($i = 0; $i < max(strlen($a),strlen($b)) && $ret > 0; $i++)
  5. 		if (strcmp($a[$i],$b[$i]) !== 0)
  6. 			$ret--;
  7. 	return $ret;
  8. }
  9.  
  10.  
  11. echo test("abc","abc") . PHP_EOL; // 2
  12. echo test("abc","abd") . PHP_EOL; // 1
  13. echo test("abc","add") . PHP_EOL; // 0
  14. echo test("abc","XXX") . PHP_EOL; // 0
  15. echo test("abcde","abc") . PHP_EOL; // 0
  16. echo test("abcd","abc") . PHP_EOL; // 1
  17.  
Success #stdin #stdout #stderr 0.02s 23896KB
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stdin
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Standard input is empty
stdout
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2
1
0
0
0
1
stderr
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PHP Notice:  Uninitialized string offset: 3 in /home/jcqGl6/prog.php on line 5
PHP Notice:  Uninitialized string offset: 4 in /home/jcqGl6/prog.php on line 5
PHP Notice:  Uninitialized string offset: 3 in /home/jcqGl6/prog.php on line 5
https://ideone.com/4pZotG
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
public

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