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  1. <?php
  2.  
  3. if (preg_match('~(\d+)x(\d++)(?!-)~', "18x18", $m)) {
  4. 	echo "18x18: " . $m[1] . " - " . $m[2] . "\n";
  5. }
  6. if (preg_match('~\b(\d+)x(\d+)\b(?!-)~', "18x18", $m)) {
  7. 	echo "18x18: " . $m[1] . " - " . $m[2] . "\n";
  8. }
  9. if (preg_match('~(\d+)x(\d++)(?!-)~', "18x18-", $m)) {
  10. 	echo "18x18-: " . $m[1] . " - " . $m[2] . "\n";
  11. }
  12. if (preg_match('~\b(\d+)x(\d+)\b(?!-)~', "18x18-", $m)) {
  13. 	echo "18x18-: " . $m[1] . " - " . $m[2];
  14. }
Success #stdin #stdout 0.02s 23844KB
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Standard input is empty
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18x18: 18 - 18
18x18: 18 - 18
https://ideone.com/x4OEi2
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
secret

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