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php 中可使用命令行变量--$argv和$argc

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Release: 2016-06-06 09:53:22
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php 中可使用命令行变量。太多文字太抽象,用脚本来说话:   
php  
echo $argv[1]."\n";
echo $argv[2]."\n";
echo $argc."\n";
print_r($argv);
var_dump($argv);
?>  

运行脚本时,命令行为:php argvtest.php TQ TQx
则输出结果为:
TQ
TQx   //$argv是一个数组 
3 //注意$argc变量,它用来保存$argv数组里元素的个数。要比正常输入的多一个,打印出来才知道,是多了一个脚本文件名称 
Array 
(
[0] => argvtest.php
[1] => TQ 
[2] => TQx

array(3) {
[0]=>
string(12) "argvtest.php"
[1]=>
string(2) "TQ"
[2]=>
string(3) "TQx"
}    

source:php.cn
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