Friday, March 28, 2014

strpos() vs. preg_match() vs. stripos()

Lessons learned:
  • strpos() is 3-16 times faster than preg_match()
  • stripos() is 2-30 times slower than strpos()
  • stripos() is 20-100 percent faster than preg_match() with the caseless modifier "//i"
  • using a regular expression in preg_match() is not faster than using a long string
  • using the utf8 modifier "//u" in preg_match() makes it 2 times slower

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