Total accesses: 296282 - Total Traffic: 1.2 GB
CPU Usage: u757.94 s165.33 cu0 cs0 - 2.56% CPU load
8.22 requests/sec - 33.5 kB/second - 4175 B/request
22 requests currently being processed, 26 idle workers
假设我们将上面的字符串作为字符串,并将该字符串存储在变量中。 问题:我希望得到以下值:
使用 strpos 和 substr 完成一些解决方案,但我认为它不是一个好的解决方案,因为上面的值是动态的,可能是2位数或4位数或更长
示例代码:
$rps = substr($data,strpos($data,"requests/sec")-5,4);
echo $rps; //displays 8.22
还有其他办法吗?我将不胜感激任何回应:)
答案 0 :(得分:4)
正则表达式。
$values = array();
preg_match("/(?P<rps>[\d.]+) requests\/sec(.*)(?P<requests>[\d]+) requests (.*)(?P<workers>[\d]+) idle workers/", $your_text, $values);
print
"requests/sec - CURRENT VALUE IS {$values['rps']}
requests currently being processed - CURRENT VALUE IS {$values['requests']}
idle workers - CURRENT VALUE IS {$values['workers']}";
答案 1 :(得分:3)
正则表达式可行:
<?php
$data = 'Total accesses: 296282 - Total Traffic: 1.2 GB
CPU Usage: u757.94 s165.33 cu0 cs0 - 2.56% CPU load
8.22 requests/sec - 33.5 kB/second - 4175 B/request
22 requests currently being processed, 26 idle workers';
if( preg_match('/(\d*\.?\d*)\srequests\/sec/', $data, $m) ){
echo $m[1];
}else{
echo 'no match';
}
答案 2 :(得分:2)
假设所有输出都在字符串变量$ output中。你可以这样做:
// requests per second
$regex = '#^([0-9]*\.?[0-9].*)\040requests/sec#';
preg_match($regex, $output, $matches);
$req_per_sec = $matches[1];
// request being processed
$regex = '/([0-9]*)\040requests\040currently/';
preg_match($regex, $output, $matches);
$req_processed = $matches[1];
// idle workers
$regex = '/\040([0-9]*)\040idle\040workers/';
preg_match($regex, $output, $matches);
$idle_workers = $matches[1];