Code Examples -> ereg -- Regular expression match

	Submit Your Code
	SEO Monitor
	UpTime Monitor
	PHP Code Contest
	My Favorite Examples
	My Favorite Articles
	Update Your Profile

More Weber Sites
	PHP Code Search
	Web Development Forums
	Learn MySQL Playing Trivia
	PHPBB2 Templates
	Web Development Index
	PHP Web Logs (BLogs)
	Web Development Resources
	Web Development Content

Recommended Links
	PHPClasses
	PHP Editor
	PHP Jobs
	Vision.To Design
	Ajax Tutorials
	PHP Programming Help
	PHP/MySQL Programming
	Webmaster Resources
	Webmaster Forum
	XML meta language
	website builder

Recommended
	Submit Site
	Forex Trading Online forex trading platform


BACK		ADD A COMMENT		SEND TO A FRIEND		ADD TO MY FAVORITES		ADD CODE EXAMPLES		PRINT

PHP Code Examples

Title :	ereg -- Regular expression match
Categories :	PHP, PHP Functions, Regexps	documentation group PHP
Date :	Apr 24th 1999
Grade :	3 of 5 (graded 2 times)
Viewed :	8342
File :	No file for this code example.
Images :	No Images for this code example.

Search :	More code by documentation group PHP
Action :	Grade This Code Example
Tools :	My Examples List

Code

Description

</H2
><DIV
CLASS="funcsynopsis"
><A
NAME="AEN37155"
></A
><CODE
><CODE
CLASS="FUNCDEF"
>int ereg</CODE
> (string pattern, string string [, array
regs])</CODE
></DIV
> Searches a <TT
CLASS="parameter"
>string</TT
> for matches to the regular
expression given in <TT
CLASS="parameter"
>pattern</TT
>.
 If matches are found for parenthesized substrings of
<TT
CLASS="parameter"
>pattern</TT
> and the function is called with
the third argument <TT
CLASS="parameter"
>regs</TT
>, the matches will
be stored in the elements of the array
<TT
CLASS="parameter"
>regs</TT
>. $regs[1] will contain the substring
which starts at the first left parenthesis; $regs[2] will contain
the substring starting at the second, and so on. $regs[0] will
contain a copy of <TT
CLASS="parameter"
>string</TT
>.
 If ereg() finds any matches at all, $regs will
be filled with exactly ten elements, even though more or fewer
than ten parenthesized substrings may actually have matched.
This has no effect on ereg()'s ability to
match more substrings. If no matches are found, $regs will not be
altered by ereg().
 Searching is case sensitive.
 Returns true if a match for <TT
CLASS="parameter"
>pattern</TT
> was
found in <TT
CLASS="parameter"
>string</TT
>, or false if no matches
were found or an error occurred.
 The following code snippet takes a date in ISO format
(YYYY-MM-DD) and prints it in DD.MM.YYYY format:
<TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN37183"
></A
>Example 1. Ereg() Example<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="programlisting"
>if (ereg ("([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})", $date, $regs)) {
echo "$regs[3].$regs[2].$regs[1]";
} else {
echo "Invalid date format: $date";
}
</PRE
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>


See also <A
HREF="get_example.php3?Function=eregi"
>eregi()</A
>,
<A
HREF="get_example.php3?Function=ereg-replace"
>ereg_replace()</A
>, and
<A
HREF="get_example.php3?Function=eregi-replace"
>eregi_replace()</A
>.

Related Code Examples

	Tag content retrieval from websites with preg_match Categories : PHP, Regexps, Arrays, HTML and PHP
	This script is a contact form between users of a website (kinda like the PM function on the forums) Categories : PHP, Databases, MySQL, Regexps
	Simple way to replace a variable value in a .conf (.ini) file using a webbrowser - the first stage of a complete universal configuration editor Categories : PHP, Regexps, Code Editors, Filesystem
	ereg_replace -- Replace regular expression Categories : PHP, PHP Functions, Regexps
	a PHP Function to Get only the filename (remove the extension) using regular expressions. Categories : PHP, Regexps, Beginner Guides
	Gets the browser and OS from the $_SERVER['http_user_agent'] variable in PHP Categories : PHP, HTTP, Regexps
	PHP Script to find url links in a page Categories : PHP, URLs, Regexps, Arrays
	I need a trim function/regexp that will trim all " " from the ends of a string. Categories : Regexps, PHP, Strings
	Check for functional file links (broken Files) Categories : PHP, Data Validation, FTP, Regexps, Arrays
	Form input return conformance Categories : HTML and PHP, PHP, Regexps
	Simple PHP program which calls other PHP program you can pass the variables to other PHP program : by Raju Categories : PHP, PHP Options and Info, Regexps, Program Execution
	How to build a search query for any N number of words in a search string Categories : PHP, Regexps, Search Engines, Search
	Newbie Notes #7 - Ridiculous regex Categories : PHP, Beginner Guides, Regexps
	email validator check checker email e-mail email address Categories : PHP, Email, Regexps
	An array of functions to use in checking user input to HTML forms : text, firstName, middleNameOrInit, lastName, email, web, digits, decimal, hex, genNum, USD, BPS, Euro, USphone, USzip Categories : PHP, Data Validation, Regexps