PHP String Manipulation: Extract hrefs

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I have a string of HTML that I would like to check to see if there are any links inside of it and, if so, extract them and put them in an array. I can do this in jQuery with the simplicity of its selectors but I cannot find the right methods to use in PHP.

For example, the string may look like this:

<h1>Doctors</h1>
<a title="C - G" href="linkl.html">C - G</a>
<a title="G - K" href="link2.html">G - K</a>
<a title="K - M" href="link3.html">K - M</a>

How (in PHP) can i turn it into an array that looks something like:

[1]=>"link1.html"
[2]=>"link2.html"
[3]=>"link3.html"

Thanks, Ian

Answers

You can use PHPs DOMDocument library to parse XML and/or HTML. Something like the following should do the trick, to get the href attribute from a string of HTML.

$html = '<h1>Doctors</h1>
<a title="C - G" href="linkl.html">C - G</a>
<a title="G - K" href="link2.html">G - K</a>
<a title="K - M" href="link3.html">K - M</a>';

$hrefs = array();

$dom = new DOMDocument();
$dom->loadHTML($html);

$tags = $dom->getElementsByTagName('a');
foreach ($tags as $tag) {
       $hrefs[] =  $tag->getAttribute('href');
}

Thursday, December 15, 2022

syn282002-632fb920e9c6

This is very easy to do using SimpleXML:

$a = new SimpleXMLElement('<a href="www.something.com">Click here</a>');
echo $a['href']; // will echo www.something.com

Friday, November 4, 2022

vinit_payal

alert('my name is: <?php echo $man; ?>' );

Friday, August 19, 2022

rod_hyde

What Assaf said is correct. There is a built in function in PHP to do exactly that.

substr_compare($str, $test, strlen($str)-strlen($test), strlen($test)) === 0;

If $test is longer than $str PHP will give a warning, so you need to check for that first.

function endswith($string, $test) {
    $strlen = strlen($string);
    $testlen = strlen($test);
    if ($testlen > $strlen) return false;
    return substr_compare($string, $test, $strlen - $testlen, $testlen) === 0;
}

Monday, November 7, 2022

rohan_stark

With str_replace:

$str = str_replace(array(' ', '<', '>', '&', '{', '}', '*'), array('-'), $str);

Note:

If replace has fewer values than search, then an empty string is used for the rest of replacement values.

Sunday, September 11, 2022

lasse_christiansen

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