PHP 可以通过exec函数执行shell命令，来获取ping时间。

代码示例：

echo 'PHP_INT_MAX : ' . PHP_INT_MAX . "<br><br>";

$ip = '115.29.237.28';		// IP地址

if (PATH_SEPARATOR==':')	// linux
{
	echo 'I am linux' . "<br><br>";
	
	exec("ping -c 3 -w 5 $ip", $info);
	echo 'linux info : ' . "<br>";
	print_r($info);
	
	$ping_time_line = end($info);
	echo '<br><br>ping_time_line : ' . $ping_time_line . "<br><br>";
	
	$ping_time = explode("=", $ping_time_line)[1];
	$ping_time_min = explode("/", $ping_time)[0] / 1000.0;
	$ping_time_avg = explode("/", $ping_time)[1] / 1000.0;
	$ping_time_max = explode("/", $ping_time)[2] / 1000.0;
	
	echo $ping_time_min . " " . $ping_time_avg . " " . $ping_time_max . "<br><br>";
	
}
else 						// windows
{
	echo 'I am windows' . "<br><br>";

	exec("ping -c 3 -w 5 $ip", $info);
	echo 'windows info : ' . "<br>";
	print_r($info);
	
	$info_time = end($info);
	echo '<br><br>info_time : ' . $info_time . "<br><br>";
}

运行结果：

PHP_INT_MAX : 9223372036854775807

I am linux

linux info : 
Array ( [0] => PING 115.29.237.28 (115.29.237.28) 56(84) bytes of data. [1] => 64 bytes from 115.29.237.28: icmp_seq=1 ttl=52 time=26.1 ms [2] => 64 bytes from 115.29.237.28: icmp_seq=2 ttl=52 time=27.5 ms [3] => 64 bytes from 115.29.237.28: icmp_seq=3 ttl=52 time=25.2 ms [4] => [5] => --- 115.29.237.28 ping statistics --- [6] => 3 packets transmitted, 3 received, 0% packet loss, time 2002ms [7] => rtt min/avg/max/mdev = 25.280/26.339/27.590/0.970 ms ) 

ping_time_line : rtt min/avg/max/mdev = 25.280/26.339/27.590/0.970 ms

0.02528 0.026339 0.02759

获取Ping时间封装成函数

function ping_time($ip) {
	$ping_cmd = "ping -c 3 -w 5 " . $ip;
	exec($ping_cmd, $info);
	$ping_time_line = end($info);
	
	$ping_time = explode("=", $ping_time_line)[1];
	$ping_time_min = explode("/", $ping_time)[0] / 1000.0;
	$ping_time_avg = explode("/", $ping_time)[1] / 1000.0;
	$ping_time_max = explode("/", $ping_time)[2] / 1000.0;
	
	$result = array();
	$result['ping_min'] = $ping_time_min;
	$result['ping_avg'] = $ping_time_avg;
	$result['ping_max'] = $ping_time_max;
	
	print_r($result);
}

ping_time('115.29.237.28');

运行结果：

Array ( [ping_min] => 0.025497 [ping_avg] => 0.025947 [ping_max] => 0.026753 )