shevron · August 29, 2015 14:01 · May 25, 2014 · May 25, 2014
diff --git a/test.php b/test.php
@@ -15,6 +15,7 @@
 function write_data($data)
 {
   $outfp = fopen('/dev/null', 'w');
-  fwrite($outfp, $data . "\n");
+  fwrite($outfp, $data);
+  fwrite($outfp, "\n");
   fclose($outfp);
 }
diff --git a/test.php b/test.php
@@ -0,0 +1,20 @@
+<?php
+
+// Get 10mb of data from /dev/zero
+$infp = fopen('/dev/zero', 'r');
+$data = fread($infp, 1024 * 1024 * 10);
+fclose($infp);
+
+write_data($data);
+
+echo "Peak memory usage: ", number_format(memory_get_peak_usage()), " bytes\n";
+
+/**
+ * Bad example of how to write some data to /dev/null
+ */
+function write_data($data)
+{
+  $outfp = fopen('/dev/null', 'w');
+  fwrite($outfp, $data . "\n");
+  fclose($outfp);
+}