Friday, 26 September 2014

htmlentities in PHP

PHP htmlentities() function is utilized to change over all characters are converted to HTML entities.

Syntax:

htmlentities(string,quotestyle,character-set)
string : Required. Defines the input string.
quotestyle : Optional. Determine whether to convert single and double quotes .
The available quote styles are:
  • ENT_COMPAT - Default. Encodes only double quotes
  • ENT_QUOTES - Encodes double and single quotes
  • ENT_NOQUOTES - Does not encode any quotes
character-set : Optional. Refers the character set to be used.
Allowed values are:
  • ISO-8859-1 - Default. Western European
  • ISO-8859-15 - Western European (adds the Euro sign + French and Finnish letters missing in ISO-8859-1)
  • UTF-8 - ASCII compatible multi-byte 8-bit Unicode
  • cp866 - DOS-specific Cyrillic charset
  • cp1251 - Windows-specific Cyrillic charset
  • cp1252 - Windows specific charset for Western European
  • KOI8-R - Russian
  • BIG5 - Traditional Chinese, mainly used in Taiwan
  • GB2312 - Simplified Chinese, national standard character set
  • BIG5-HKSCS - Big5 with Hong Kong extensions
  • Shift_JIS - Japanese
  • EUC-JP - Japanese

 Example:

<?php 
$input_str = "Sam & 'Jack'";
echo htmlentities($input_str, ENT_COMPACT);
echo "<br />";
echo htmlentities($input_str, ENT_QOUTES);
echo "<br />";
echo htmlentities($input_str, ENT_NOQOUTES);
?>

Output will be:

Sam & 'Jack' 
Sam & 'Jack' 
Sam & 'Jack'
 
Viewsource for output in the browser:
<html>
<body>
Sam &amp; 'Jack'<br />
Sam &amp; &#039;Jack&#039;<br />
Sam &amp; 'Jack'
</body>
</html>

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