split(3) [php man page]

SPLIT(3)								 1								  SPLIT(3)

split - Split string into array by regular expression

SYNOPSIS

       array split (string  $pattern, string  $string, [int  $limit = -1])

DESCRIPTION

	Splits a $string into array by regular expression.

       Warning

	      This function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged.

PARAMETERS

	      o $pattern
		-  Case  sensitive  regular  expression.   If  you  want to split on any of the characters which are considered special by regular
		expressions, you'll need to escape them first. If you think split(3) (or any other regex function, for that matter) is doing some-
		thing weird, please read the file regex.7, included in the regex/ subdirectory of the PHP distribution. It's in manpage format, so
		you'll want to do something along the lines of man /usr/local/src/regex/regex.7 in order to read it.

	      o $string
		- The input string.

	      o $limit
		- If $limit is set, the returned array will contain a maximum of $limit elements with the last element containing the  whole  rest
		of $string.

RETURN VALUES

	Returns  an  array  of	strings, each of which is a substring of $string formed by splitting it on boundaries formed by the case-sensitive
       regular expression $pattern.

	If there are n occurrences of $pattern, the returned array will contain n+1 items. For example, if there is no occurrence of $pattern,	an
       array with only one element will be returned. Of course, this is also true if $string is empty. If an error occurs, split(3) returns FALSE.

EXAMPLES

       Example #1

	      split(3) example

	       To split off the first four fields from a line from /etc/passwd:

	      <?php
	      list($user, $pass, $uid, $gid, $extra) =
		  split(":", $passwd_line, 5);
	      ?>

       Example #2

	      split(3) example

	       To parse a date which may be delimited with slashes, dots, or hyphens:

	      <?php
	      // Delimiters may be slash, dot, or hyphen
	      $date = "04/30/1973";
	      list($month, $day, $year) = split('[/.-]', $date);
	      echo "Month: $month; Day: $day; Year: $year<br />
";
	      ?>

NOTES

       Note

	      As  of PHP 5.3.0, the regex extension is deprecated in favor of the PCRE extension. Calling this function will issue an E_DEPRECATED
	      notice. See the list of differences for help on converting to PCRE.

       Tip

	      split(3) is deprecated as of PHP 5.3.0. preg_split(3) is the suggested alternative to this function. If you don't require the  power
	      of regular expressions, it is faster to use explode(3), which doesn't incur the overhead of the regular expression engine.

       Tip

	       For  users  looking  for  a  way to emulate Perl's @chars = split('', $str) behaviour, please see the examples for preg_split(3) or
	      str_split(3).

SEE ALSO

       preg_split(3), spliti(3), str_split(3), explode(3), implode(3), chunk_split(3), wordwrap(3).

PHP Documentation Group 														  SPLIT(3)

EXPLODE(3)								 1								EXPLODE(3)

explode - Split a string by string

SYNOPSIS

       array explode (string  $delimiter, string  $string, [int  $limit])

DESCRIPTION

	Returns an array of strings, each of which is a substring of $string formed by splitting it on boundaries formed by the string $delimiter.

PARAMETERS

	      o $delimiter
		- The boundary string.

	      o $string
		- The input string.

	      o $limit
		- If $limit is set and positive, the returned array will contain a maximum of $limit elements with the last element containing the
		rest of $string.  If the $limit parameter is negative, all components except the last -$limit are returned.  If the $limit parame-
		ter is zero, then this is treated as 1.

       Note

	       Although implode(3) can, for historical reasons, accept its parameters in either order, explode(3) cannot. You must ensure that the
	      $delimiter argument comes before the $string argument.

RETURN VALUES

	Returns an array of strings created by splitting the $string parameter on boundaries formed by the $delimiter.

	If $delimiter is an empty string (""), explode(3) will return FALSE. If $delimiter contains a value that is not contained in $string and a
       negative $limit is used, then an empty array will be returned, otherwise an array containing $string will be returned.

CHANGELOG

       +--------+-----------------------------------------+
       |Version |					  |
       |	|					  |
       |	|		Description		  |
       |	|					  |
       +--------+-----------------------------------------+
       | 5.1.0	|					  |
       |	|					  |
       |	|  Support for negative $limits was added |
       |	|					  |
       +--------+-----------------------------------------+
EXAMPLES

       Example #1

	      explode(3) examples

	      <?php
	      // Example 1
	      $pizza  = "piece1 piece2 piece3 piece4 piece5 piece6";
	      $pieces = explode(" ", $pizza);
	      echo $pieces[0]; // piece1
	      echo $pieces[1]; // piece2

	      // Example 2
	      $data = "foo:*:1023:1000::/home/foo:/bin/sh";
	      list($user, $pass, $uid, $gid, $gecos, $home, $shell) = explode(":", $data);
	      echo $user; // foo
	      echo $pass; // *

	      ?>

       Example #2

	      explode(3) return examples

	      <?php
	      /*
		 A string that doesn't contain the delimiter will simply
		 return a one-length array of the original string.
	      */
	      $input1 = "hello";
	      $input2 = "hello,there";
	      var_dump( explode( ',', $input1 ) );
	      var_dump( explode( ',', $input2 ) );

	      ?>

	      The above example will output:

	      array(1)
	      (
		  [0] => string(5) "hello"
	      )
	      array(2)
	      (
		  [0] => string(5) "hello"
		  [1] => string(5) "there"
	      )

       Example #3

	      $limit parameter examples

	      <?php
	      $str = 'one|two|three|four';

	      // positive limit
	      print_r(explode('|', $str, 2));

	      // negative limit (since PHP 5.1)
	      print_r(explode('|', $str, -1));
	      ?>

	      The above example will output:

	      Array
	      (
		  [0] => one
		  [1] => two|three|four
	      )
	      Array
	      (
		  [0] => one
		  [1] => two
		  [2] => three
	      )

NOTES

       Note

	      This function is binary-safe.

SEE ALSO

       preg_split(3), str_split(3), mb_split(3), str_word_count(3), strtok(3), implode(3).

PHP Documentation Group 														EXPLODE(3)