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get_html_translation_table

(PHP 4, PHP 5)

get_html_translation_table --  Returns the translation table used by htmlspecialchars() and htmlentities()

Description

array get_html_translation_table ( [int table [, int quote_style]] )

get_html_translation_table() will return the translation table that is used internally for htmlspecialchars() and htmlentities().

There are two new constants (HTML_ENTITIES, HTML_SPECIALCHARS) that allow you to specify the table you want. Default value for table is HTML_SPECIALCHARS. And as in the htmlspecialchars() and htmlentities() functions you can optionally specify the quote_style you are working with. The default is ENT_COMPAT mode. See the description of these modes in htmlspecialchars().

例子 1. Translation Table Example

<?php
$trans = get_html_translation_table(HTML_ENTITIES);
$str = "Hallo & <Frau> & Krämer";
$encoded = strtr($str, $trans);
?>
The $encoded variable will now contain: "Hallo &amp; &lt;Frau&gt; &amp; Kr&auml;mer".

Another interesting use of this function is to, with help of array_flip(), change the direction of the translation.

<?php
$trans = array_flip($trans);
$original = strtr($encoded, $trans);
?>

The content of $original would be: "Hallo & <Frau> & Krämer".

See also htmlspecialchars(), htmlentities(), strtr(), and array_flip().

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