php - preg_replace not ignoring [] from string -

this code :

$string = "hello text [readmore] , remaining text"; echo preg_replace("[readmore]","",$string);

this expected output :

hello text , remaining text

this actual output :

hello text [] , remaining text

question simple how ride of "[]" ?

you need escape [ & ]. try below regexp,

preg_replace("/\[([^\[\]]++|(?r))*+\]/", "", $string);

output:

hello text , remaining text

Detect