Remove HTML tags

PHP strip_tags () function

 

Definition and usage

The strip_tags () function removes tags from HTML, XML, and PHP.

Syntax

strip_tags(string,allow)

Parameters	Description
String	Required. Specifies the string to be checked.
Allow	Optional. The label that is allowed. These tags are not deleted.

Tips and comments

Note: This function will always strip HTML comments. This failsAllowParameter change.

 

 

Example 1

<?phpecho strip_tags("Hello <b>world!</b>");?>

Output: Hello world!

Example 2

<?phpecho strip_tags("Hello <b><i>world!</i></b>","<b>");?>

Output: HelloWorld!

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The following are other online search references:

1. User-Defined Functions

Function delhtmlflag ($ document)
{
// Replace the HTML tag with regular expressions. The function is the same as dealhtml. It is from the PHP manual.
/* $ Document should contain an HTML document.
* In this example, the HTML Tag and JavaScript code are removed.
* And blank characters. Some common
* HTML objects are converted into corresponding text.
*/
$ Search = array ("'<SCRIPT [^>] *?> .*? </SCRIPT> 'si ", // remove Javascript
"'<[//!] *? [^ <>] *?> 'Si ", // remove the HTML Tag
"'([/R/n]) [/S] +'", // remove white space characters
"'& (Quot | #34);' I", // replaces the HTML Object
"'& (Amp | #38);' I ",
"'& (LT | #60);' I ",
"'& (GT | #62);' I ",
"'& (Nbsp | #160);' I ",
"'& (Iexcl | #161);' I ",
"'& (Cent | #162);' I ",
"'& (Pound | #163);' I ",
"'& (Copy | #169);' I ",
"'& # (/D +); 'E"); // run as PHP code

$ Replace = array ("",
"",
"// 1 ",
"/"",
"&",
"<",
"> ",
"",
CHR (1, 161 ),
CHR (1, 162 ),
CHR (1, 163 ),
CHR (1, 169 ),
"CHR (// 1 )");
$ Text = preg_replace ($ search, $ replace, $ document );
Return $ text;
}

 

 

2. php htmlspecialchars () function