strip_tags
Description
The strip_tags of String for PHP strip HTML and PHP tags from a string.
Syntax
strip_tags( string $string, array|string|null $allowed_tags = null ): string
Parameters
string
The input string.
allowed_tags
Tags which should not be stripped. These are either given as string, or as of PHP 7.4.0, as array.
NOTE: HTML comments and PHP tags are also stripped. This is hardcoded and can not be changed with allowed_tags.
NOTE: In PHP 5.3.4 and later, self-closing XHTML tags are ignored and only non-self-closing tags should be used in allowed_tags. For example, to allow both <br> and <br/>, you should use:
<? strip_tags($input, '<br>'); ?>
Return
Returns the stripped string.
Examples
1 · string
<? $string = '<!-- comment --><a href="#href">anchor</a><br><br/><p>paragraph</p><span>span</span>'; $return = strip_tags($string); echo $return; ?>
anchorparagraphspan
2 · allowed_tags · array
<? $string = '<!-- comment --><a href="#href">anchor</a><br><br/><p>paragraph</p><span>span</span>'; $allowed_tags = ['a', 'p']; $return = strip_tags($string, $allowed_tags); echo $return; ?>
<a href="#href">anchor</a><p>paragraph</p>span
3 · allowed_tags · string
<? $string = '<!-- comment --><a href="#href">anchor</a><br><br/><p>paragraph</p><span>span</span>'; $allowed_tags = '<a><p>'; $return = strip_tags($string, $allowed_tags); echo $return; ?>
<a href="#href">anchor</a><p>paragraph</p>span
4 · allowed_tags · non-self-closing
<? $string = '<!-- comment --><a href="#href">anchor</a><br><br/><p>paragraph</p><span>span</span>'; $allowed_tags = '<br>'; $return = strip_tags($string, $allowed_tags); echo $return; ?>
anchor<br><br/>paragraphspan
Links
String
- addcslashes
- addslashes
- bin2hex
- chop
- chr
- chunk_split
- convert_uudecode
- convert_uuencode
- count_chars
- crc32
- crypt
- echo
- explode
- fprintf
- get_html_translation_table
- hebrev
- hebrevc
- hex2bin
- html_entity_decode
- htmlentities
- htmlspecialchars
- htmlspecialchars_decode
- implode
- join
- lcfirst
- levenshtein
- localeconv
- ltrim
- md5
- md5_file
- metaphone
- nl_langinfo
- nl2br
- number_format
- ord
- parse_str
- printf
- quoted_printable_decode
- quoted_printable_encode
- quotemeta
- rtrim
- setlocale
- sha1
- sha1_file
- similar_text
- soundex
- sprintf
- sscanf
- str_contains
- str_decrement
- str_ends_with
- str_getcsv
- str_increment
- str_ireplace
- str_pad
- str_repeat
- str_replace
- str_rot13
- str_shuffle
- str_split
- str_starts_with
- str_word_count
- strcasecmp
- strchr
- strcmp
- strcoll
- strcspn
- stripcslashes
- stripos
- stripslashes
- stristr
- strlen
- strnatcasecmp
- strnatcmp
- strncasecmp
- strncmp
- strpbrk
- strpos
- strrchr
- strrev
- strripos
- strrpos
- strspn
- strstr
- strtok
- strtolower
- strtoupper
- strtr
- substr
- substr_compare
- substr_count
- substr_replace
- trim
- ucfirst
- ucwords
- vfprintf
- vprintf
- vsprintf
- wordwrap