PHP preg_split() Function

PHP preg_split() Function


Hello folks! welcome back to a new section of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP preg_split() function.

The PHP preg_split() function works exactly like PHP split() function, except that regular expressions are taken as input parameters for pattern.

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

Flags can be any combination of the below 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.


Syntax

The following below 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.

Example

Following is a simple example -

<?php
   $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 />"  ;
?>

Output

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

123
456
789
000


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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