From: Ilia Alshanetsky <iliaa@php.net>
Date: Thu, 30 Oct 2003 00:49:33 +0000 (+0000)
Subject: Added substr_compare().
X-Git-Tag: RELEASE_2_0_0RC1~6
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ab7ee13670e19c02ef5955139998487d0597182a;p=php

Added substr_compare().
---

diff --git a/NEWS b/NEWS
index 74f647fcfd..fb3bdeb15f 100644
--- a/NEWS
+++ b/NEWS
@@ -34,6 +34,7 @@ PHP                                                                        NEWS
   . array_diff_uassoc(). (Andrey)
   . convert_uuencode(). (Ilia)
   . convert_uudecode(). (Ilia)
+  . substr_compare(). (Ilia)
   . pcntl_wait(). (GeorgeS)
 - Added "resume_pos" context option to "ftp://" wrapper. (Sara)
 - Added optional parameter to OCIWriteTemporaryLob() to specify the type of LOB
diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 14c51179a9..60f01bf7d9 100644
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -374,6 +374,7 @@ function_entry basic_functions[] = {
 	PHP_FE(str_word_count,														NULL)
 	PHP_FE(str_split,														NULL)
 	PHP_FE(strpbrk,															NULL)
+	PHP_FE(substr_compare,														NULL)
 
 #ifdef HAVE_STRCOLL
 	PHP_FE(strcoll,															NULL)
diff --git a/ext/standard/php_string.h b/ext/standard/php_string.h
index be64af0d6c..dac757b050 100644
--- a/ext/standard/php_string.h
+++ b/ext/standard/php_string.h
@@ -89,6 +89,7 @@ PHP_FUNCTION(str_shuffle);
 PHP_FUNCTION(str_word_count);
 PHP_FUNCTION(str_split);
 PHP_FUNCTION(strpbrk);
+PHP_FUNCTION(substr_compare);
 #ifdef HAVE_STRCOLL
 PHP_FUNCTION(strcoll);
 #endif
diff --git a/ext/standard/string.c b/ext/standard/string.c
index fe7553f13c..73775ad244 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -4662,6 +4662,35 @@ PHP_FUNCTION(strpbrk)
 }
 /* }}} */
 
+/* {{{ proto int substr_compare(string main_str, string str, int offset [, int length [, bool case_sensitivity]])
+   Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters */
+PHP_FUNCTION(substr_compare)
+{
+	char *s1, *s2;
+	int s1_len, s2_len;
+	long offset, len=0;
+	zend_bool cs=0;
+	uint cmp_len;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ssl|lb", &s1, &s1_len, &s2, &s2_len, &offset, &len, &cs) == FAILURE) {
+		RETURN_FALSE;
+	}
+
+	if (len && offset >= s1_len) {
+		php_error_docref(NULL TSRMLS_CC, E_WARNING, "The start position cannot exceed initial string length.");
+		RETURN_FALSE;
+	}
+
+	cmp_len = (uint) (len ? len : MAX(s2_len, (s1_len - offset)));
+
+	if (!cs) {
+		RETURN_LONG(zend_binary_strncmp(s1 + offset, (s1_len - offset), s2, s2_len, cmp_len));
+	} else {
+		RETURN_LONG(zend_binary_strncasecmp(s1 + offset, (s1_len - offset), s2, s2_len, cmp_len));
+	}
+}
+/* }}} */
+
 /*
  * Local variables:
  * tab-width: 4