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Re: String Replacement [message #172230 is a reply to message #172225]

Mon, 07 February 2011 08:17

Pavel Lepin
Messages: 1
Registered: February 2011

Karma:

Junior Member

Alec wrote:
> I am not sure where to start on this on.

Read up on XML processing.

> I have a string as follows '<text
> identifier="3ecebe84-8ddd-475e-86ca-300b5298fc34">
> <value><![CDATA[12345]]></value>'
>
> The text identifier always remains the same ie. 3ece..... for each
> article. The string is much longer containing several different
> identifiers. I would like to be able to jump to the one shown, and
> then extract the CDATA value shown after ie. 12345. The length of this
> may change, so I need a way to extract the text between the second '['
> and first ']' . I hope that makes sense.

Assuming your actual data is well-formed XML (the above snippet is not):

<?php

$dom = new DOMDocument;
$dom->loadXML($string);
$xpath = new DOMXpath($dom);
$query = '/text[starts-with(@identifier, \'3ece\')]/value/text()';
$nodelist = $xpath->evaluate($query);
if ($nodelist->length === 1)
{
print($nodelist->item(0)->nodeValue."\n");
}
else
{
die('invalid query result: '.
'['.strval($nodelist->length).'] nodes returned'."\n");
}

?>

--
Pavel Lepin

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[Message index]

		String Replacement By: Alec on Sun, 06 February 2011 15:49
		Re: String Replacement By: Michael Fesser on Sun, 06 February 2011 17:35
		Re: String Replacement By: Pavel Lepin on Mon, 07 February 2011 08:17
		Re: String Replacement By: Alec on Tue, 08 February 2011 06:39
		Re: String Replacement By: Yuri Subach on Tue, 08 February 2011 12:38

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