Online PHP editor | rfc for vOF7D

@ 2017-07-24T09:29:09Z

<?php

// Modificar enlaces que contienen una imagen
//  https://es.stackoverflow.com/q/90027/127

//Un HTML de ejemplo
$html = '
        <a href="https://i.stack.imgur.com/mOJ0a.png">
            <span>Enlace a la misma URL de la imagen</span>
            <img src="https://i.stack.imgur.com/mOJ0a.png" />
        </a>

        <span>Imagen independiente precedida por un </span>
        <a href="https://i.stack.imgur.com/mOJ0a.png">enlace</a>
        <img src="https://i.stack.imgur.com/mOJ0a.png" />
        
        <a href="./">
            <span>Enlace a una URL diferente que la imagen</span>
            <img src="https://i.stack.imgur.com/mOJ0a.png" />
        </a>
';


//Englobamos en body
$html = "<body>$html</body>";

//Generar el DOM
$dom = new DOMDocument;
$dom->loadHTML($html, LIBXML_COMPACT | LIBXML_HTML_NOIMPLIED | LIBXML_NONET | LIBXML_HTML_NODEFDTD);


//Obtener todos los enlaces
$a_nodelist = $dom->getElementsByTagName('a');

//Recorrer cada uno
foreach ($a_nodelist as $enlace) {
    //Obtener la primera imagen dentro del enlace
    $img = $enlace->getElementsByTagName('img')->item(0);
    if ($img) { //si tiene imagen
        //Comparar el enlace con la imagen
        $urlEnlace = $enlace->getAttribute('href');
        $urlImagen = $img->getAttribute('src');
        if ($urlEnlace == $urlImagen) {
            //Si son el mismo, reemplazar
            $enlace->parentNode->replaceChild($img, $enlace);
        }
    }
}


//imprimir el resultado
echo $dom->saveHTML();

Output for git.master, git.master_jit, rfc.property-hooks: <body> <img src="https://i.stack.imgur.com/mOJ0a.png"> <span>Imagen independiente precedida por un </span> <a href="https://i.stack.imgur.com/mOJ0a.png">enlace</a> <img src="https://i.stack.imgur.com/mOJ0a.png"> <a href="./"> <span>Enlace a una URL diferente que la imagen</span> <img src="https://i.stack.imgur.com/mOJ0a.png"> </a> </body>

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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