超越PHP - Exceed PHP: get_html_translation_table

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> & Kr漤er"; $encoded = strtr($str, $trans); ?>
The $encoded variable will now contain: "Hallo & <Frau> & Krämer".

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".

add a note User Contributed Notes
get_html_translation_table

jon+php-dev at unequivocal dot co dot uk
10-Sep-2000 10:38

Caution: This function is implemented separately from htmlentities() and
htmlspecialchars() in the PHP source, and hence is quite likely to diverge
from these functions.



In particular, in 4.0.2 htmlspecialchars()
escapes the single quote character, whereas the translation table returned
by this function does not.

add a note