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Hello
Assuming a string has the value:
onclick="<javascript code here>"
or
onclick='<javascript code here>'
is there an easy method using regular expression to obtain the JavaScript code without resorting to parsing?
onclick is case insensitive and the <javascript code here> may contain double or single quotes, but you can assume it is legal
any help would be appreciated
somethign like
Code:preg_match("/onclick=[\"\'](.*?)[\'\"]/i", $string, $match); $javascript = $match[1];
try this
PHP Code:$onClick = 'onClick="javascript code here"';
if(preg_match('/onclick=(\'|")(.*)(\'|")/i',$onClick,$match))
print_r($match);
IMHO, it should look like
PHP Code:$html = <<<EOF
<a href="...." onclick = "if('abc')alert ('de\'f')">a</a>
EOF;
preg_match_all(
"~onclick\s*=\s*([\"\'])(.*?)\\1~si",
$html,
$matches);
var_dump($matches);
Thanks for the help people
I also got this useful answer from NogDog a few minutes ago
Code:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html lang='en'> <head> <META HTTP-EQUIV='Content-Type' CONTENT='text/html; charset=ISO-8859-1'> <title>Untitled</title> <style type="text/css"> </style> </head> <body> <?php $test = <<<EOD <submit value='submit' onClick="this.is.a.('test');it.is.only.a('test');"> EOD; echo "<p>Initial string: <strong>". htmlentities($test) . "</strong></p>\n"; preg_match("/onclick=[\"\'](.*;)[\"\']/i", $test, $matches); echo "<p>Result of preg_match: <strong>{$matches[1]}</strong></p>\n"; ?> </body> </html>
I liked the psyon's code
I'd suggest you test all expressions posted above with this (valid) html snippet
PHP Code:$html = <<<EOF
<a href="...." onclick = "if('test1')
alert('te\'st1')">a</a>
<a href="...." onclick = 'if("test2")
alert("te\"st2")'>b</a>
EOF;
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