Hmm, zend.assertions is not really on/off, but -1/0/1

Author: bwoebi

php.ini-development

@@ -1573,12 +1573,16 @@ url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"
 ;session.upload_progress.min_freq = "1"
 
 [Assertion]
-; Do not compile assertions at all (to have no overhead at run-time)
-; Default Value: On
-; Development Value: On
-; Production Value: Off
+; Switch whether to compile assertions at all (to have no overhead at run-time)
+; -1: Do not compile at all
+;  0: Jump over assertion at run-time
+;  1: Execute assertions
+; Changing from or to a negative value is only possible in php.ini! (For turning assertions on and off at run-time, see assert.active, when zend.assertions = 1)
+; Default Value: 1
+; Development Value: 1
+; Production Value: -1
 ; http://php.net/zend.assertions
-zend.assertions = On
+zend.assertions = 1
 
 ; Assert(expr); active by default.
 ; http://php.net/assert.active

php.ini-production

@@ -1573,12 +1573,16 @@ url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"
 ;session.upload_progress.min_freq = "1"
 
 [Assertion]
-; Do not compile assertions at all (to have no overhead at run-time)
-; Default Value: On
-; Development Value: On
-; Production Value: Off
+; Switch whether to compile assertions at all (to have no overhead at run-time)
+; -1: Do not compile at all
+;  0: Jump over assertion at run-time
+;  1: Execute assertions
+; Changing from or to a negative value is only possible in php.ini! (For turning assertions on and off at run-time, see assert.active, when zend.assertions = 1)
+; Default Value: 1 
+; Development Value: 1 
+; Production Value: -1 
 ; http://php.net/zend.assertions
-zend.assertions = Off
+zend.assertions = -1
 
 ; Assert(expr); active by default.
 ; http://php.net/assert.active