Replace with regular expression : preg_replace « String « PHP

Replace with regular expression

  $teststring = '"Hello" and "Goodbye."';

  $greedyresult = preg_replace('/".*"/', '"***"', $teststring);

  $nongreedyresult = preg_replace('/".*?"/', '"***"', $teststring);
  echo "Original: $teststring\n";
  echo "Greedy Replace: $greedyresult\n";
  echo "Non-Greedy Replace: $nongreedyresult\n";

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