shell传参给php，并接收php的返回结果

shell

#!/bin/bash
host=${DB_HOST}
dbname=${DB_NAME}
user=${DB_USER}
pwd=${DB_PWD}
# 只能通过单字母传参数
create_res=`php ${cur_dir}/init/createdb.php -h $host -u $user -p $pwd -d $dbname`
if [[ "$create_res" = 1 ]]; 
then
    Echo_Green "create database $dbname ok."
else 
    Echo_Red "create database $dbname fail."    
fi

php

<?php
header("Content-Type: text/html;charset=utf-8");
error_reporting(E_ALL | E_STRICT);

$param_arr = getopt('h:u:p:d:');

$host     = $param_arr['h'] ?: '127.0.0.1';
$user     = $param_arr['u'];
$pwd      = $param_arr['p'];
$dbname   = $param_arr['d'];

if (!$user || !$pwd || !$dbname) {
    echo 2;
    return;
}

// 创建数据库
try {
    $conn = new PDO("mysql:host=$host", $user, $pwd);
    // 设置 PDO 错误模式为异常 
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $sql = "CREATE DATABASE IF NOT EXISTS " . $dbname . " DEFAULT CHARSET utf8 COLLATE utf8_general_ci;";
    // 使用 exec() ，因为没有结果返回 
    $conn->exec($sql);
    echo 1;
    $conn = null;
    return;
} catch (PDOException $e) {
    // echo $sql . "<br>" . $e->getMessage();
    echo 0;
    $conn = null;
    return;
}