Php Domdocument Check Span Class

How can I iterate all tag and check if class is font18 or font17? $html = new DOMDocument(); $html->load('file.html'); html:

<

Solution 1:

Your HTML would give error of Input is not proper UTF-8, indicate encoding ! Bytes: 0xE0 0x20 0x6D 0x65 if you use $doc->load("file.html"); here is a simple work around

$doc = new DOMDocument('1.0', 'UTF-8');
libxml_use_internal_errors(true);
$doc->loadHTML(file_get_contents("file.html"));

foreach ( $doc->getElementsByTagName('span') as $node ) {
    if (preg_match("/^font1[7|8]$/", $node->getAttribute('class'))) {
        echo $node->nodeValue, "<br /><br />";
    }
}

Solution 2:

The follwing will loop through all span tags and you can use this to check the class (if the HTML snippet you provided is indeed the one you are using):

$doc = new DOMDocument();
libxml_use_internal_errors(true);
$doc->load('file.html');

$xpath = new DOMXPath($doc);
$nodes = $xpath->query('//span');

foreach ($nodes as $node) {
    echo $node->getAttribute('class');
}

Demo: http://codepad.viper-7.com/pQuQw1

If the HTML is actually different you can tell me so I can change my snippet. It may also be worthwhile to only select specific elements in the xpath query (e.g. to only select elements with class font17 or font18) .

Note that I have used DOMXPath because this will give you more flexibility to change the query to select the elements you need depending on your HTML

If you only want to select elements with class font17 or font18 you can change the query to something like:

$nodes = $xpath->query('//span[contains(@class, "font17")]|//span[contains(@class, "font18")]');

Demo: http://codepad.viper-7.com/mHo5P7