From 7bfd857fa1e762c4ac5c3abd3eba4c95406af147 Mon Sep 17 00:00:00 2001
From: Jani Taskinen <jani@php.net>
Date: Mon, 23 Jul 2007 11:47:44 +0000
Subject: [PATCH] MFB: Fixed "Floating point exception" inside wordwrap()

---
 ext/standard/string.c                    | 5 +++++
 ext/standard/tests/strings/wordwrap.phpt | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/ext/standard/string.c b/ext/standard/string.c
index 8ba1f5371d..0abd0b4cc5 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -856,6 +856,11 @@ PHP_FUNCTION(wordwrap)
 		RETURN_EMPTY_STRING();
 	}
 
+	if (breakcharlen == 0) {
+		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Break string cannot be empty");
+		RETURN_FALSE;
+	}
+
 	if (linelength == 0 && docut) {
 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Can't force cut when width is zero");
 		RETURN_FALSE;
diff --git a/ext/standard/tests/strings/wordwrap.phpt b/ext/standard/tests/strings/wordwrap.phpt
index 66104e3c77..c1f3b05bda 100644
--- a/ext/standard/tests/strings/wordwrap.phpt
+++ b/ext/standard/tests/strings/wordwrap.phpt
@@ -27,6 +27,8 @@ $tests = <<<TESTS
 
 "123|==1234567890|==123" === wordwrap("123 1234567890 123", 10, "|==", 1)
 
+FALSE === @wordwrap(chr(0), 0, "")
+
 TESTS;
 
 include(dirname(__FILE__) . '/../../../../tests/quicktester.inc');
-- 
2.40.0