Data commit

Task/Execute-a-system-command/PHP/execute-a-system-command-1.php

@@ -0,0 +1,2 @@
+@exec($command,$output);
+echo nl2br($output);

Task/Execute-a-system-command/PHP/execute-a-system-command-2.php

@@ -0,0 +1,11 @@
+$results = `ls`;
+# runs command and returns its STDOUT as a string
+
+system("ls");
+# runs command and returns its exit status; its STDOUT gets output to our STDOUT
+
+echo `ls`;
+# the same, but with back quotes
+
+passthru("ls");
+# like system() but binary-safe