Online PHP editor | output for Pluib

@ 2019-07-05T11:53:26Z

<?php
$html = <<< HTML
<article id="p73" class="p-quote">
Albert Einstein’s Quotes Collection
<blockquote><p>Life is like riding a bicycle. To keep your balance, you must keep moving.</p></blockquote>
<blockquote><p>Pure mathematics is, in its way, the poetry of logical ideas.</p></blockquote>
<blockquote><p>Education is what remains after one has forgotten what one has learned in school.</p></blockquote>
<blockquote><p>Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.</p></blockquote>
<blockquote><p>Logic will get you from A to B. Imagination will take you everywhere.</p></blockquote>
<blockquote><p>If you can’t explain it simply, you don’t understand it well enough.</p></blockquote>
<blockquote><p>The difference between stupidity and genius is that genius has its limits.</p></blockquote>
</article>
HTML;

class ExtractTag {
	private $doc = null;

	public function __construct($html) {
		$this->doc = new DomDocument();
		$content = mb_convert_encoding(
			$html,
			'HTML-ENTITIES',
			'UTF-8'
		);
		@$this->doc->loadHTML($content);
	}

	private function getFirstTag($tag) {
	    $elements = $this->doc->getElementsByTagName($tag);
	    if (!$elements->count()) {
	        throw new Exception('no elements found');
	    }
		return $elements->item(0);
	}
	private function printFirstTag($tag) {
		$firstTag = $this->getFirstTag($tag);
		echo $this->doc->saveHTML($firstTag);
	}

	public function print_image() {
		$this->printFirstTag('img');
	}
	public function print_quote() {
		$this->printFirstTag('blockquote');
	}

}

$dom = new ExtractTag($html);
echo $dom->print_quote(); #Expect to see a <blockquote>
echo $dom->print_image(); #Expect to see nothing since there is no <img> tag in the html!

Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /in/Pluib on line 20 <blockquote><p>Life is like riding a bicycle. To keep your balance, you must keep moving.</p></blockquote> Fatal error: Uncaught Exception: no elements found in /in/Pluib:31 Stack trace: #0 /in/Pluib(36): ExtractTag->getFirstTag('img') #1 /in/Pluib(41): ExtractTag->printFirstTag('img') #2 /in/Pluib(51): ExtractTag->print_image() #3 {main} thrown in /in/Pluib on line 31
Process exited with code 255.
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33: <blockquote><p>Life is like riding a bicycle. To keep your balance, you must keep moving.</p></blockquote> Fatal error: Uncaught Exception: no elements found in /in/Pluib:31 Stack trace: #0 /in/Pluib(36): ExtractTag->getFirstTag('img') #1 /in/Pluib(41): ExtractTag->printFirstTag('img') #2 /in/Pluib(51): ExtractTag->print_image() #3 {main} thrown in /in/Pluib on line 31
Process exited with code 255.
Output for 7.1.25 - 7.1.30: Fatal error: Uncaught Error: Call to undefined method DOMNodeList::count() in /in/Pluib:30 Stack trace: #0 /in/Pluib(36): ExtractTag->getFirstTag('blockquote') #1 /in/Pluib(44): ExtractTag->printFirstTag('blockquote') #2 /in/Pluib(50): ExtractTag->print_quote() #3 {main} thrown in /in/Pluib on line 30
Process exited with code 255.

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