How can i use preg_replace_callback to make the matches (bold)

im trying to find a way to use preg_replace_callback to replace the matches with <b> match </b>

for example :

the text :

This is a text ,, text , this is a text

the pattern

/text/ or /(text)/ or any pattern which can find text

i want the result is:

This is a <b>text</b> ,, <b>text</b> , this开发者_高级运维 is a <b>text</b>

Thanks..

---

Do you mean something like

(\btext\b)

and replace it with

<b> $1 <\b>

See it here on Regexr

I don't think that you need preg_replace_callback, you can use backreferences with preg_replace that should be enough for what you want.

You can do something like

$string = 'This is a text ,, text , this is a text';
$pattern = '/(\btext\b)/';
$replacement = '<b> $1 <\b>';
echo preg_replace($pattern, $replacement, $string);

See the preg_replace doc

---

What's wrong with:

<?php
$search = 'test';
$text = 'This is a test string';
// Filter out unwanted junk
$search = preg_replace('/[^a-z0-9]/', '', $search);
echo preg_replace('/('.$search.')/i', '<b>\1</b>', $text);
?>

This would produce:

This is a <b>test</b> string

---

Why don't you try this.

$string = "This is a text ,, text , this is a text";
$string = str_replace("text","<b>text</b>",$string);

Its very easy way, less confusion :)