PHP.nl

htmlspecialchars

htmlspecialchars

Convert special characters to HTML entities

string **htmlspecialchars** string $string int $flags  $encoding bool $double_encode

Certain characters have special significance in HTML, and should be represented by HTML entities if they are to preserve their meanings. This function returns a string with these conversions made. If you require all input substrings that have associated named entities to be translated, use instead. htmlentities

If the input string passed to this function and the final document share the same character set, this function is sufficient to prepare input for inclusion in most contexts of an HTML document. If, however, the input can represent characters that are not coded in the final document character set and you wish to retain those characters (as numeric or named entities), both this function and (which only encodes substrings that have named entity equivalents) may be insufficient. You may have to use instead. htmlentities``mb_encode_numericentity

string The being converted. string

flags A bitmask of one or more of the following flags, which specify how to handle quotes, invalid code unit sequences and the used document type. The default is .

  `ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401`

encoding For the purposes of this function, the encodings , , , , , , and are effectively equivalent, provided the itself is valid for the encoding, as the characters affected by occupy the same positions in all of these encodings. ISO-8859-1``ISO-8859-15``UTF-8``cp866``cp1251``cp1252``KOI8-R``string``htmlspecialchars

double_encode When is turned off PHP will not encode existing html entities, the default is to convert everything. double_encode

The converted . string

If the input contains an invalid code unit sequence within the given an empty string will be returned, unless either the or flags are set. string``encoding``ENT_IGNORE``ENT_SUBSTITUTE

Voorbeeld: example

<?php
$new = htmlspecialchars("<a href='test'>Test</a>", ENT_QUOTES);
echo $new; // &lt;a href=&#039;test&#039;&gt;Test&lt;/a&gt;
?>

Opmerking: > Note that this function does not translate anything beyond what is listed above. For full entity translation, see . htmlentities

Opmerking: > In case of an ambiguous value, the following rules apply: flags

  • When neither of , , is present, the default is . ENT_COMPAT``ENT_QUOTES``ENT_NOQUOTES``ENT_NOQUOTES
  • When more than one of , , is present, takes the highest precedence, followed by . ENT_COMPAT``ENT_QUOTES``ENT_NOQUOTES``ENT_QUOTES``ENT_COMPAT
  • When neither of , , , is present, the default is . ENT_HTML401``ENT_HTML5``ENT_XHTML``ENT_XML1``ENT_HTML401
  • When more than one of , , , is present, takes the highest precedence, followed by , and . ENT_HTML401``ENT_HTML5``ENT_XHTML``ENT_XML1``ENT_HTML5``ENT_XHTML``ENT_XML1``ENT_HTML401
  • When more than one of , , are present, takes the highest precedence, followed by . ENT_DISALLOWED``ENT_IGNORE``ENT_SUBSTITUTE``ENT_IGNORE``ENT_SUBSTITUTE

get_html_translation_table``htmlspecialchars_decode``strip_tags``htmlentities``nl2br

Vorige ← htmlspecialchars_decode Volgende implode →

Documentatie