Preg_replace

<?php
$string = 'April 15, 2003';
$pattern = '/(\w+) (\d+), (\d+)/i';
$replacement = '${1}1,$3';
echo preg_replace($pattern, $replacement, $string);

Source: php.net

Php preg replace

preg_replace($pattern, $replacement, $subject [, $limit [, &$count]]);
// Returns an array if the subject parameter is an array,
// or a string otherwise.
// If matches are found, the new subject will be returned, otherwise
// subject will be returned unchanged or NULL if an error occurred.

Source: php.net

Php preg_replace function

preg_replace($pattern, $replacement, $string);

Source: php.net

Preg_replace

i searched for a while for a script, that could see the difference between an html tag and just < and > placed in the text,
the reason is that i recieve text from a database,
wich is inserted by an html form, and contains text and html tags,
the text can contain < and >, so does the tags,
with htmlspecialchars you can validate your text to XHTML,
but you'll also change the tags, like <b> to <b>,
so i needed a script that could see the difference between those two...
but i couldn't find one so i made my own one,
i havent fully tested it, but the parts i tested worked perfect!
just for people that were searching for something like this,
it may looks big, could be done easier, but it works for me, so im happy.

<?php
function fixtags($text){
$text = htmlspecialchars($text);
$text = preg_replace("/=/", "=\"\"", $text);
$text = preg_replace("/"/", ""\"", $text);
$tags = "/<(\/|)(\w*)(\ |)(\w*)([\\\=]*)(?|(\")\""\"|)(?|(.*)?"(\")|)([\ ]?)(\/|)>/i";
$replacement = "<$1$2$3$4$5$6$7$8$9$10>";
$text = preg_replace($tags, $replacement, $text);
$text = preg_replace("/=\"\"/", "=", $text);
return $text;
}
?>

an example:

<?php
$string = "
this is smaller < than this<br />
this is greater > than this<br />
this is the same = as this<br />
<a href=\"http://www.example.com/example.php?test=test\">This is a link</a><br />
<b>Bold</b> <i>italic</i> etc...";
echo fixtags($string);
?>

will echo:
this is smaller < than this<br />
this is greater > than this<br />
this is the same = as this<br />
<a href="http://www.example.com/example.php?test=test">This is a link</a><br />
<b>Bold</b> <i>italic</i> etc...

I hope its helpfull!!

Source: php.net

Similar codes

0 vote186 views2 answers
Http://www.finalclap.com/faq/81-php-afficher-date-heure-francais
PHP
7 votes184 views4 answers
Str slug laravel
PHP
8 votes189 views4 answers
If user logged in wordpress
PHP Wordpress
0 vote172 views1 answer
Laravel factory counter
PHP Laravel
0 vote181 views2 answers
Laravel blade components
PHP
1 vote164 views1 answer
Get array from multidimensional array
PHP
1 vote160 views1 answer
HTML Snippets not working in .php files
PHP
1 vote188 views1 answer
How to catch query exception in laravel 8
PHP Laravel
0 vote122 views1 answer
Laravel model refresh
PHP
0 vote236 views3 answers
When you click on the search button, it is moved to the page laravel
PHP