I have a chain with information of this type:
$texto = "cualquiercosa<b>contenido</b>cualquiercosa";
$resultado = preg_split("<b></b>",$str)
However, the result does not bring the text between the labels. Could you help me on how the regular expression should be?
You should not use regular expressions to process HTML. Just a small change in the HTML would make your regex fail. A space of more, a change in the attributes of the tag, a comment, or more complex structures, would make even a gigantic regex not follow the rules.
It's very easy to process HTML with DOM , they are the tools that They are designed for that.
The DOM is simply generated as follows:
$html = 'cualquiercosa<b>contenido</b>cualquiercosa';
//Generar el DOM
$dom = new DOMDocument;
$dom->loadHTML($html, LIBXML_COMPACT | LIBXML_HTML_NOIMPLIED | LIBXML_NONET);
And we can get all the <b> :
//Obtener todos los tags <B>
$b_nodelist = $dom->getElementsByTagName('b');
To then iterate over the list of results, getting the text inside each label (without labels):
//Bucle para cada <b>
foreach ($b_nodelist as $b) {
//Obtener el contenido de texto del tag
$texto = $b->textContent;
echo "\n\nContenido del B:\n" . $texto; // => contenido
}
Result:
Contenido del B:
contenido
Demo: