vendor/dtracetoolkit/dtracetoolkit-20120512vendor/dtracetoolkit

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diff --git a/Examples/php_syscalls_example.txt b/Examples/php_syscalls_example.txt
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+The following are examples of php_syscalls.d.
+
+This is a simple script to count executed PHP functions and system calls.
+Here it traces an example program, Code/Php/func_abc.php
+
+# php_syscalls.d 
+Tracing... Hit Ctrl-C to end.
+^C
+ PID     FILE                       TYPE       NAME                      COUNT
+ 18419   func_abc.php               func       func_a                        1
+ 18419   func_abc.php               func       func_b                        1
+ 18419   func_abc.php               func       func_c                        1
+ 18419   func_abc.php               func       sleep                         3
+ 18419   httpd                      syscall    nanosleep                     3
+
+While tracing, four functions were called - func_a(), func_b(), func_c(), and
+sleep.  There were also three instances of the system call nanosleep().
+
+This script can provide an insight to how a PHP application is interacting
+with the system, by providing both application function calls and system calls 
+in the same output.
+