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Date: Fri, 6 Jul 2007 12:22:44 +0300 (EEST)
To: internals@lists.php.net
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Subject: Re: [PHP-DEV] What is the use of "unicode.semantics" in PHP 6?
From: tokul@users.sourceforge.net ("Tomas Kuliavas")

>>> Unicode code points can be defined with \u, but PHP6 breaks existing
>>> octal and hex escape sequences.
>
> I don't understand what this means...

PHP6.0-200707060630

unicode.fallback_encoding => 'utf-8' => 'utf-8'
unicode.filesystem_encoding => no value => no value
unicode.http_input_encoding => 'utf-8' => 'utf-8'
unicode.output_encoding => 'utf-8' => 'utf-8'
unicode.runtime_encoding => 'utf-8' => 'utf-8'
unicode.script_encoding => 'utf-8' => 'utf-8'
unicode.semantics => On => On
unicode.stream_encoding => UTF-8 => UTF-8

--- test.php ---
<?php
$string1 = "ą";
$string2 = "\xC4\x85";
var_dump($string1 == $string2)
var_dump(preg_match("/[\240-\377]/",$string1));
var_dump(preg_match("/[\240-\377]/",$string2));
?>
---

ą is in utf-8 (latin small letter a with ogonek, latin extended-a range).
It contains two bytes with 0xC4 0x85 values.

Expected result and actual result for php 5.2.0:
---
bool(true)
int(1)
int(1)
---
"/[\240-\377]/" range should match 0xC4 byte.

Actual result (PHP6):
---
bool(false)
int(0)
int(1)
---