remove square brackets from string php

1str_replace( array('[',']') , ''  , $string )

1
2$output = preg_replace( '/\[\[(\w+)\[\]/' , '$1' , $string );
3

1$repl = str_replace(array('[[', ']]'), '', '[[link_to_page]]');// "link_to_page"

1
2preg_match_all('/\[\[([^\]]+)\]\]/', $yourText, $matches);
3foreach($matches as $link) {
4   echo $link[1];
5}
6

1$string = str_replace(array('[[',']]'),'',$string);

1$repl = preg_replace('/(\[|\]){2}/', '', '[[link_to_page]]');// "link_to_page"