diff --git a/reference/errorfunc/functions/set-error-handler.xml b/reference/errorfunc/functions/set-error-handler.xml
index 51ef8fd05e..da0038de8f 100644
--- a/reference/errorfunc/functions/set-error-handler.xml
+++ b/reference/errorfunc/functions/set-error-handler.xml
@@ -75,7 +75,7 @@
- handler
+ boolhandler
interrno
stringerrstr
stringerrfile
diff --git a/reference/errorfunc/functions/set-exception-handler.xml b/reference/errorfunc/functions/set-exception-handler.xml
index 2f68dbcf74..852bc9a915 100644
--- a/reference/errorfunc/functions/set-exception-handler.xml
+++ b/reference/errorfunc/functions/set-exception-handler.xml
@@ -33,7 +33,13 @@
This function must be defined before calling
set_exception_handler. This handler function
needs to accept one parameter, which will be the exception object that
- was thrown.
+ was thrown. This is the handler signature:
+
+
+
+ voidhandler
+ Exception$ex
+
diff --git a/reference/outcontrol/functions/ob-start.xml b/reference/outcontrol/functions/ob-start.xml
index b35da714b4..39d9856c48 100644
--- a/reference/outcontrol/functions/ob-start.xml
+++ b/reference/outcontrol/functions/ob-start.xml
@@ -65,11 +65,32 @@
return a new output buffer as a result, which will be sent to the
browser. If the output_callback is not a
callable function, this function will return &false;.
+ This is the callback signature:
- If the callback function has two parameters, the second parameter is
- filled with a bit-field consisting of
- PHP_OUTPUT_HANDLER_* constants.
+
+ boolhandler
+ stringbuffer
+ intphase
+
+
+
+ buffer
+
+
+ Contents of the output buffer.
+
+
+
+
+ phase
+
+
+ Bitmask of PHP_OUTPUT_HANDLER_* constants.
+
+
+
+
If output_callback returns &false; original
diff --git a/reference/pcre/functions/preg-replace-callback.xml b/reference/pcre/functions/preg-replace-callback.xml
index 4ecb31dc4b..82106d1dd1 100644
--- a/reference/pcre/functions/preg-replace-callback.xml
+++ b/reference/pcre/functions/preg-replace-callback.xml
@@ -43,7 +43,13 @@
A callback that will be called and passed an array of matched elements
in the subject string. The callback should
- return the replacement string.
+ return the replacement string. This is the callback signature:
+
+
+
+ stringhandler
+ arraymatches
+
You'll often need the callback function