Php function code for replacing special characters in ultra-long text _ php Basics-php Manual

Php replaces special characters in ultra-long text, mainly through str_replace The code is as follows:

Function unhtml ($ content ){
$ Content = htmlspecialchars ($ content );
$ Content = str_replace (chr (13 ),"
", $ Content );
$ Content = str_replace (chr (32 ),"
", $ Content );
$ Content = str_replace ("[_ [", "<", $ content );
$ Content = str_relace (") _)", ">", $ content );
$ Content = str_replace ("| _ |", "", $ content );
Rerurn trim ($ content );
}

PHP str_replace () function

Definition and usage
The str_replace () function uses one string to replace other characters in the string.

Syntax
Str_replace (find, replace, string, count)

Parameters	Description
Find	Required. Specifies the value to be searched.
Replace	Required. Required replacementFindValue.
String	Required. Specifies the string to be searched.
Count	Optional. A variable that counts the number of replicas.