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  1. <?php
  2.  
  3. $sentence = 'Im a professional.bowler';
  4. var_dump(preg_match('/\bprofessional\b/i', $sentence)); //1
  5. var_dump(preg_match('/\bprofessional\.bowler\b/i', $sentence)); //1
  6.  
  7. $wordList = array_flip(explode(' ', $sentence));
  8. var_dump(isset($wordList['professional'])); //false
  9. var_dump(isset($wordList['professional.bowler'])); //true
Success #stdin #stdout 0.03s 52480KB
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int(1)
int(1)
bool(false)
bool(true)
https://ideone.com/E6hszk
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
secret

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