THE WORLD'S LARGEST WEB DEVELOPER SITE

PHP Tutorial

PHP HOME PHP Intro PHP Install PHP Syntax PHP Comments PHP Variables PHP Echo / Print PHP Data Types PHP Strings PHP Numbers PHP Math PHP Constants PHP Operators PHP If...Else...Elseif PHP Switch PHP Loops PHP Functions PHP Arrays PHP Superglobals PHP RegEx

PHP Forms

PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete

PHP Advanced

PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP Callback Functions PHP JSON PHP Exceptions

PHP OOP

PHP What is OOP PHP Classes/Objects PHP Constructor PHP Destructor PHP Access Modifiers PHP Inheritance PHP Constants PHP Abstract Classes PHP Traits PHP Static Methods PHP Static Properties PHP Namespaces PHP Iterables

MySQL Database

MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Where MySQL Order By MySQL Delete Data MySQL Update Data MySQL Limit Data

PHP XML

PHP XML Parsers PHP SimpleXML Parser PHP SimpleXML - Get PHP XML Expat PHP XML DOM

PHP - AJAX

AJAX Intro AJAX PHP AJAX Database AJAX XML AJAX Live Search AJAX Poll

PHP Examples

PHP Examples PHP Compiler PHP Quiz PHP Exercises PHP Certificate

PHP Reference

PHP Overview PHP Array PHP Calendar PHP Date PHP Directory PHP Error PHP Filesystem PHP Filter PHP FTP PHP JSON PHP Libxml PHP Mail PHP Math PHP Misc PHP MySQLi PHP Network PHP RegEx PHP SimpleXML PHP Stream PHP String PHP Variable Handling PHP XML Parser PHP Zip PHP Timezones

PHP preg_split() Function

❮ PHP RegExp Reference

Example

Use preg_split() to split a date into its components:

<?php
$date = "1970-01-01 00:00:00";
$pattern = "/[-\s:]/";
$components = preg_split($pattern, $date);
print_r($components);
?>
Try it Yourself »

Definition and Usage

The preg_split() function breaks a string into an array using matches of a regular expression as separators.


Syntax

preg_split(pattern, string, limit, flags)

Parameter Values

Parameter Description
pattern Required. A regular expression determining what to use as a separator
string Required. The string that is being split
limit Optional. Defaults to -1, meaning unlimited. Limits the number of elements that the returned array can have. If the limit is reached before all of the separators have been found, the rest of the string will be put into the last element of the array
flags Optional. These flags provide options to change the returned array:
  • PREG_SPLIT_NO_EMPTY - Empty strings will be removed from the returned array.
  • PREG_SPLIT_DELIM_CAPTURE - If the regular expression contains a group wrapped in parentheses, matches of this group will be included in the returned array.
  • PREG_SPLIT_OFFSET_CAPTURE - Each element in the returned array will be an array with two element, where the first element is the substring and the second element is the position of the first character of the substring in the input string.

Technical Details

Return Value: Returns an array of substrings where each item corresponds to a part of the input string separated by a match of the regular expression
PHP Version: 4+

More Examples

Example

Using the PREG_SPLIT_DELIM_CAPTURE flag:

<?php
$date = "1970-01-01 00:00:00";
$pattern = "/([-\s:])/";
$components = preg_split($pattern, $date, -1,
PREG_SPLIT_DELIM_CAPTURE);
print_r($components);
?>
Try it Yourself »

Example

Using the PREG_SPLIT_OFFSET_CAPTURE flag:

<?php
$date = "1970-01-01";
$pattern = "/-/";
$components = preg_split($pattern, $date, -1,
PREG_SPLIT_OFFSET_CAPTURE);
print_r($components);
?>
Try it Yourself »

❮ PHP RegExp Reference