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Several ways to pass in parameters when running in php command line mode

高洛峰
Release: 2016-11-28 16:32:47
Original
1056 people have browsed it

 url method

<strong>$param = array();
 
if ($argc > 1) {
    parse_str ( $argv [1], $param );
    foreach ( $param as $k => $v ) {
        echo "define $k=$v\n";
        $param[$k] = $v;
    }
}
 
print_r($param);
 
//运行示例
php sync_t_search.php "name=sjk&city=bj"</strong>
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System built-in variables

<strong>//当传入多个或多个参数可选时有很大的局限性
$argv #0为当前执行的文件名
$argc #参数个数</strong>
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System function getopt

<strong>//1、个人总结:如果只传一个参数,:(必选)/::(可选)都可
//2、如果传多个参数则要区分可选必选,建议尽量用可选参数并且后面的值不要传入空格
//3、可选参数:标识符存在且有值时,下标才会存在
//4、必选参数:只要标识符存在,下标就会存在(如果取不到值为false)
/**
 * 
php song.php -h"a b" || php song.php -h"a b" 不受空格影响(建议保持一致都不加空格)
array(1) {
  ["h"]=>
  string(3) "a b"
}
 
php song.php -h -a
array(1) {
  ["h"]=>
  string(2) "-a"
}
 
 */
var_dump(getopt(&#39;h:a::&#39;)); //必选参数,如果参加之间有空格要加引号, 选项后面有空格也不会影响取值,会把他后面的值都当做参数的值
 
/**
php song.php -asong
array(1) {
  ["a"]=>
  string(4) "song"
}
 */
var_dump(getopt(&#39;a::h:&#39;)); //可选参数,参数必须紧跟在选项后面,否则获取不到</strong>
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4. System function getopt

<strong>//标准输出
fwrite(STDOUT, "Enter your name: ");
echo "\n";
//标准输入
$name = trim(fgets(STDIN));
fwrite(STDOUT, "Hello, $name!");</strong>
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