php man page for ereg_replace

Query: ereg_replace

OS: php

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

EREG_REPLACE(3) 							 1							   EREG_REPLACE(3)

ereg_replace - Replace regular expression

SYNOPSIS
string ereg_replace (string $pattern, string $replacement, string $string)
DESCRIPTION
This function scans $string for matches to $pattern, then replaces the matched text with $replacement. Warning This function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged.
PARAMETERS
o $pattern - A POSIX extended regular expression. o $replacement - If $pattern contains parenthesized substrings, $replacement may contain substrings of the form digit, which will be replaced by the text matching the digit'th parenthesized substring; will produce the entire contents of string. Up to nine substrings may be used. Parentheses may be nested, in which case they are counted by the opening parenthesis. o $string - The input string.
RETURN VALUES
The modified string is returned. If no matches are found in $string, then it will be returned unchanged.
EXAMPLES
For example, the following code snippet prints "This was a test" three times: Example #1 ereg_replace(3) example <?php $string = "This is a test"; echo str_replace(" is", " was", $string); echo ereg_replace("( )is", "\1was", $string); echo ereg_replace("(( )is)", "\2was", $string); ?> One thing to take note of is that if you use an integer value as the $replacement parameter, you may not get the results you expect. This is because ereg_replace(3) will interpret the number as the ordinal value of a character, and apply that. For instance: Example #2 ereg_replace(3) example <?php /* This will not work as expected. */ $num = 4; $string = "This string has four words."; $string = ereg_replace('four', $num, $string); echo $string; /* Output: 'This string has words.' */ /* This will work. */ $num = '4'; $string = "This string has four words."; $string = ereg_replace('four', $num, $string); echo $string; /* Output: 'This string has 4 words.' */ ?> Example #3 Replace URLs with links <?php $text = ereg_replace("[[:alpha:]]+://[^<>[:space:]]+[[:alnum:]/]", '<a href="\0">\0</a>', $text); ?>
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 ereg_replace(3) is deprecated as of PHP 5.3.0. preg_replace(3) is the suggested alternative to this function.
SEE ALSO
ereg(3), eregi(3), eregi_replace(3), str_replace(3), preg_replace(3), quotemeta(3). PHP Documentation Group EREG_REPLACE(3)
Related Man Pages
substr_replace(3) - php
str_replace(3) - php
eregi_replace(3) - php
preg_filter(3) - php
split(3) - php
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