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pinging host measured in micro seconds

Problem

You have a requirement to capture network speed, in microseconds.

The required speed was less than 0.25 of a second (or quarter of second).

One Response to “pinging host measured in micro seconds”

links for 2007-06-03 Says:
June 3rd, 2007 at 8:31 pm
[…] PHP Coding School » pinging host measured in micro seconds (tags: UNIX Network testing ping PHP microtime Coding School) […]

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Problem	Solution	Example	Reference	Recommended
Here's the PHP code, using the microtime function and a simple ping. <?php list($usec, $sec)= explode(" ",microtime()); $thisDate=sprintf("%f", ($usec+$sec)); $host="$argv[1]"; system("ping -c1 $host > /dev/null 2>&1",$response); if($response==0) { list($usec, $sec)=explode(" ",microtime()); $nextDate=sprintf("%f", ($usec+$sec)); printf("%0.4fn",$nextDate-$thisDate); } else { print("ping failed to host: $host\n"); } ?> Here is a run through: $ php -q pingHost.php bagend 0.0098 $ php -q pingHost.php bagend 0.0066 $ php -q pingHost.php bagend 0.0065 $ php -q pingHost.php bagend 0.0066

pinging host measured in micro seconds

One Response to “pinging host measured in micro seconds”

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