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Feb 12th, 2009

regex

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anyone can help me to make regular expression

[code ]

$string="
xxxxx
xxxxx
<body border='0'>
<script language=javascript>
...
word1 ... word2 ... word3... word4
...
</script>

";

i want to remove all word from that string if that string have minimal three word'x'

preg_replace(); how to make that regex?

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forzadraco

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Feb 12th, 2009

Re: regex

Quote ...

i want to remove all word from that string if that string have minimal three word'x'

I am not clear what you want. Do you want to search for xxx, if found, remove it ?

nav33n

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Feb 12th, 2009

Re: regex

yes remove all if get same pattern.. the problem is how to make regex pattern...

forzadraco

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Re: regex

php Syntax (Toggle Plain Text)
$pattern = "/x{3}/";
$string = preg_replace($pattern,'', $string);
$pattern = "/x{3}/";
$string = preg_replace($pattern,'', $string);

This will look for xxx, if found, replaces it with null.

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Re: regex

not like that.. iwant to remove all from <script> tag till </script> if match with the pattern..

the pattern from
<script .....>
... targetword1..
... targetword2..
... targetword3..

</script>

forzadraco

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Re: regex

If you want to see if there are 3 or more x's, use:

PHP Syntax (Toggle Plain Text)

$pattern = "/x{3,}/"

The {3} means looking for 3 of the preceding character but {3,} means 3 or more. There's a great tutorial on regex in PHP here: http://www.sitepoint.com/article/reg...pressions-php/

bastones

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Feb 12th, 2009

Re: regex

This isn't the best solution (Infact, its kinda sloppy!). First, use preg_match to search for pattern "xxx". If found, then, use preg_match again, but this time, search for pattern, '/<script[^>]+\>(.*)<\/script>/s' . This will again return the string between <script> tags. Then use str_replace and replace the matched string with "".

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