PHP preg_split() Function


Hello dear readers! welcome back to another section of our tutorial on PHP. In this tutorial guide, we will be discussing about the PHP preg_split() function.

A PHP preg_split() function works exactly like split(), except for the fact that regular expressions are accepted as input parameters for pattern.

If the optional input parameter limit is specified, then only limit number of substrings are going to be returned.

Flags can be any combination of the following flags -

  • PREG_SPLIT_NO_EMPTY - If this flag is set, then only non-empty pieces is going to be returned by preg_split.
  • PREG_SPLIT_DELIM_CAPTURE - If this flag is set, then parenthesized expression in the delimiter pattern will be capured and also returned.
  • PRE_SPLIT_OFFSET_CAPTURE - If this flag is set, then for every occuring match the appendent string offset will also be returned.


The following is the syntax for the preg_replace() function -

array preg_split (string pattern, string string  [, int  limit  [,  int  flags ]] );  

Return Value

  • Returns an array of strings after splitting up a string.


Following is a simple example -

   $ip = "123.456.789.000"; // some IP address
   $iparr = preg_split ("/\./", $ip); 
   print "$iparr[0] <br />";
   print "$iparr[1] <br />" ;
   print "$iparr[2] <br />"  ;
   print "$iparr[3] <br />"  ;


When the above code is executed, it will produce the following result -


RECOMMENDED POST: PHP preg_replace() Function

Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the PHP preg_grep() Function.

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