我运行这段代码:立即mysqli_query停止执行PHP〜100,000行
<?php
$dbport = 1578;
$dbhost = "localhost";
$dbname = "dbname";
$dbuser = "dbuser";
$dbpswd = "dbpswd";
$MySQLLink = mysqli_connect($dbhost, $dbuser, $dbpswd, $dbname, $dbport);
$query = "SELECT * FROM assets_advanced_records LIMIT 100000";
echo "running query ".$query."<br>";
$result = mysqli_query($MySQLLink, $query) or die("Query failed (".$query."): ".mysqli_error($MySQLLink));
echo "query succeeded<br>";
mysqli_close($MySQLLink);
?>
停止执行mysqli_query();该页面不再加载。
输出看起来是这样的:
running query SELECT * FROM assets_advanced_records LIMIT 100000
如果我减少限制设置为10000我得到正确的输出:
running query SELECT * FROM assets_advanced_records LIMIT 10000
query succeeded
可能是什么造成的?
MySQL版本:5.7.12-0ubuntu1.1
PHP版本:7.0.8-0ubuntu0.16.04.3
我得到这个在控制台执行停止时:
Failed to load resource: the server responded with a status of 500 (Internal Server Error)
UPDATE:
检查/var/log/apache2/error.log我得到这样的错误:
[Fri Dec 30 15:13:23.983920 2016] [:error] [pid 1907] [client 10.10.6.116:54978] FastCGI: server "/usr/lib/cgi-bin/php7-fcgi" stderr: PHP message: PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 806912 bytes) in /var/www/html/debug_tools2.php on line 491, referer: http://10.10.6.24/debug_tools2.php
您是否试图在单页中打印所有100000条记录? –
如果是这样,你可以使用分页这 –
不,我只是有点担心查询不失败或超时,但只是停止执行(这似乎不像正常行为)。上面的代码是专门为测试这个问题编写的。我实际上并不需要运行该查询,但我需要知道为什么它在未来出现时无法运行。 – ChelseaB