workerman 学习记录

Linux系统环境检测

Linux系统可以使用以下脚本测试本机PHP环境是否满足WorkerMan运行要求。 

curl -Ss http://www.workerman.net/check.php | php

check.php

<?php
$version_ok = $pcntl_loaded = $posix_loaded = false;
if (version_compare(phpversion(), "5.3.3", ">=")) {
    $version_ok = true;
}
if (in_array("pcntl", get_loaded_extensions())) {
    $pcntl_loaded = true;
}
if (in_array("posix", get_loaded_extensions())) {
    $posix_loaded = true;
}

function check($val)
{
    if ($val) {
        return "\033[32;40m [OK] \033[0m\n";
    } else {
        return "\033[31;40m [fail] \033[0m\n";
    }
}

echo "PHP Version >= 5.3.3                 " . check($version_ok);

echo "Extension pcntl check                " . check($pcntl_loaded);

echo "Extension posix check                " . check($posix_loaded);

$check_func_map = array(
    "stream_socket_server",
    "stream_socket_client",
    "pcntl_signal_dispatch",
    "pcntl_signal",
    "pcntl_alarm",
    "pcntl_fork",
    "posix_getuid",
    "posix_getpwuid",
    "posix_kill",
    "posix_setsid",
    "posix_getpid",
    "posix_getpwnam",
    "posix_getgrnam",
    "posix_getgid",
    "posix_setgid",
    "posix_initgroups",
    "posix_setuid",
    "posix_isatty",
);
// 获取php.ini中设置的禁用函数
if ($disable_func_string = ini_get("disable_functions")) {
    $disable_func_map = array_flip(explode(",", $disable_func_string));
}
// 遍历查看是否有禁用的函数
foreach ($check_func_map as $func) {
    if (isset($disable_func_map[$func])) {
        echo "\n\033[31;40mFunction $func may be disabled. Please check disable_functions in php.ini\n";
        echo "see http://doc.workerman.net/faq/disable-function-check.html\033[0m\n";
        exit;
    }
}

 

脚本如果全部显示ok，则代表满足WorkerMan要求

如果不是全部ok，则参考下面文档安装缺失的扩展即可。（注意：检测脚本中没有检测event扩展或者libevent扩展，如果业务并发连接数大于1024必须安装event扩展或者libevent扩展，并且优化Linux内核

linux特殊含义的转义符\033

格式:
echo -e "\033[字背景颜色;字体颜色m字符串\033[0m" 

例如: 
echo -e "\033[41;36m something here \033[0m" 
其中41的位置代表底色, 36的位置是代表字的颜色 

那些ascii code 是对颜色调用的始末. 
\033[XX; m …… \033[0m   #XX表示下面的数字

字颜色:30-----------37
30:黑 
31:红 
32:绿 
33:黄 
34:蓝色 
35:紫色 
36:深绿 
37:白色 

字背景颜色范围:40----47
40:黑 
41:深红 
42:绿 
43:黄色 
44:蓝色 
45:紫色 
46:深绿 
47:白色

字体加亮颜色:90------------97
90:黑 
91:红 
92:绿 
93:黄 
94:蓝色 
95:紫色 
96:深绿 
97:白色

背景加亮颜色范围:100--------------------107
40:黑 
41:深红 
42:绿 
43:黄色 
44:蓝色 
45:紫色 
46:深绿 
47:白色

ANSI控制码的说明 
\33[0m 关闭所有属性 
\33[1m 设置高亮度 
\33[4m 下划线 
\33[5m 闪烁 
\33[7m 反显 
\33[8m 消隐 
\33[30m -- \33[37m 设置前景色 
\33[40m -- \33[47m 设置背景色 
\33[nA 光标上移n行 
\33[nB 光标下移n行 
\33[nC 光标右移n行 
\33[nD 光标左移n行 
\33[y;xH设置光标位置 
\33[2J 清屏 
\33[K 清除从光标到行尾的内容 
\33[s 保存光标位置 
\33[u 恢复光标位置 
\33[?25l 隐藏光标 
\33[?25h 显示光标

\x1b[2J\x1b[$;1H    $表示行位

 

fix.php

<?php
$disable_functions_str = ini_get("disable_functions");
if (!$disable_functions_str) {
    exit("ok\n");
}

$functions_required = [
    "pcntl_",
    "posix_",
    "stream_",
];

$has_disbaled_functions = false;
foreach ($functions_required as $func) {
    if (strpos($disable_functions_str, $func) !== false) {
        $has_disbaled_functions = true;
        break;
    }
}

if (!$has_disbaled_functions) {
    exit("ok\n");
}

$disable_functions = explode(",", $disable_functions_str);
$disable_functions_removed = [];
foreach ($disable_functions as $index => $func) {
    $func = trim($func);
    foreach ($functions_required as $func_prefix) {
        if (strpos($func, $func_prefix) === 0) {
            $disable_functions_removed[$func] = $func;
            unset($disable_functions[$index]);
        }
    }
}

$php_ini_file = PHP_CONFIG_FILE_PATH . "/php.ini";
if (!is_file($php_ini_file)) {
    exit("$php_ini_file not found\n");
}

$php_ini_content = file_get_contents($php_ini_file);
if (!$php_ini_content) {
    exit("$php_ini_file content empty\n");
}

$new_disable_functions_str = implode(",", $disable_functions);
$php_ini_content = preg_replace("/\ndisable_functions *?=[^\n]+/", "\ndisable_functions = $new_disable_functions_str", $php_ini_content);

file_put_contents($php_ini_file, $php_ini_content);

foreach ($disable_functions_removed as $func) {
    echo DIRECTORY_SEPARATOR === "/" ? "$func       \033[32;40m [enabled] \033[0m\r\n" : "$func     [enabled]\r\n";
}

echo "\r\nsuccess\r\n";