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preg_replace

Thread began 3/25/2013 3:06 am by JamieEff | Last modified 3/25/2013 12:28 pm by JamieEff | 1270 views | 4 replies |

3/25/2013 3:06 am | #1 JamieEff

preg_replace

Hey guys

Am trying to use pre_replace to remove the <img> and <a> tags from some content so that I can use it as a meta description.

Individually they work fine:

html:

<meta name="description" content="<?php echo(str_replace(array("<p>","</p>"),"",substr(preg_replace("/<img[^>]+\>/i", " ",$row_BlogRS['BlogContent']),0,250))."..."); ?>">

html:

<meta name="description" content="<?php  echo(str_replace(array("<p>","</p>"),"",substr(preg_replace("/<a href=\"(.*)\">/i",  " ",$row_BlogRS['BlogContent']),0,250))."..."); ?>">

But if I try to combine them the meta description on the resulting page is blank:

html:

<meta name="description" content="<?php echo(str_replace(array("<p>","</p>"),"",substr(preg_replace("/<a href=\"(.*)\">/i", "/<img[^>]+\>/i", " ",$row_BlogRS['BlogContent']),0,250))."..."); ?>">

what am I doing wrong please?

Many thanks

Jamie

3/25/2013 8:01 am | #2 Jason ByrnesWebAssist

you need to use 2 separate preg_replace functions, one to remove images, and another to remove anchors.

due to the complexity of what you are trying to accomplish, it may be better to create a function to perform each string manipulation rather than trying to add them all inline.

3/25/2013 10:35 am | #3 JamieEff

Um.... how would I do that please Jason?

3/25/2013 10:59 am | #4 Jason ByrnesWebAssist

create the function in the document head to perform each string conversion, for example:

php:

<?php

function convertString($string) {

    $retStr = $string;

    $retStr = str_replace(array("<p>","</p>"), "", $retStr);

    $retStr = preg_replace("/<a href=\"(.*)\">/i", " ", $retStr);

    $retStr = preg_replace("/<img[^>]+\>/i", " ", $retStr);

    return $retStr;

}

?>

the you can call the function in the echo statement tag:

php:

<?php echo(convertString($row_BlogRS['BlogContent'])); ?>

3/25/2013 12:28 pm | #5 JamieEff

That's great. Thanks for the tip :)

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