[英]Backup mysql database through ssh using php
我正在尝试使用PHP通过SSH备份mysql数据库。 我已经通过ssh建立了ssh连接,但是数据库备份没有任何进展。 这是我的代码:
<?php
if (!function_exists("ssh2_connect")) die("function ssh2_connect doesn't exist");
if(!($con = ssh2_connect("server.hosting.com", 22))){
echo "fail: unable to establish connection\n";
} else {
if(!ssh2_auth_password($con, "user", "password")) {
echo "fail: unable to authenticate\n";
} else {
// allright, we're in!
echo "okay: logged in...\n";
if (!($stream = ssh2_exec($con, 'echo "mysqldump -u userdb -p pass
dbname tablename > mydb_tab.sql"|mysql'))) {
echo "fail: unable to execute command\n";
} else {
// collect returning data from command
stream_set_blocking($stream, true);
$data = "";
while ($buf = fread($stream,4096)) {
$data .= $buf;
}
fclose($stream);
}
}
}
?>
您的命令不正确,应显示为:
mysqldump -h server –uuserdb -ppass dbname > mydb_tab.sql
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