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PHP - How to check if string contains substring PHP

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Once in a while we need to check whether a string contains substring, some other string or characters or a value. Checking for existence of a string (or substring) inside another string is easier than it might seem. The following article describes how to check for whether a string contains string in PHP, or simply said how to find string within string in PHP.

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  1. $intPos = strpos($strHaystack,$strNeedle);
  2.  
  3. if( $intPos === false ) {
  4.      // string strNeedle NOT found in strHaystack
  5. } else {
  6.      // string strNeedle found in strHaystack
  7. }

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