From: Dmitry Stogov <dmitry@zend.com>
Date: Fri, 19 Feb 2016 12:44:11 +0000 (+0300)
Subject: Added comments about special functions
X-Git-Tag: php-7.1.0alpha1~593
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=11a43f10de5cf7ef6cdc4aba4242fa52c2434687;p=php

Added comments about special functions
---

diff --git a/ext/standard/string.c b/ext/standard/string.c
index 3ac3614ac9..82aa97e8cd 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -2740,7 +2740,8 @@ PHP_FUNCTION(quotemeta)
 /* }}} */
 
 /* {{{ proto int ord(string character)
-   Returns ASCII value of character */
+   Returns ASCII value of character
+   Warning: This function is special-cased by zend_compile.c and so is bypassed for constant string argument */
 PHP_FUNCTION(ord)
 {
 	char   *str;
@@ -2761,7 +2762,8 @@ PHP_FUNCTION(ord)
 /* }}} */
 
 /* {{{ proto string chr(int ascii)
-   Converts ASCII code to a character */
+   Converts ASCII code to a character
+   Warning: This function is special-cased by zend_compile.c and so is bypassed for constant integer argument */
 PHP_FUNCTION(chr)
 {
 	zend_long c;