从PHP调用Perl脚本并传递变量，同时还使用可变的Perl脚本名称 [英] Calling Perl script from PHP and passing in variables, while also using variablized perl script name

问题描述

我通常按如下方式从PHP调用perl脚本并以这种方式传递变量，并且它可以正常工作，但是现在我正在构建一个可重用的组件，在这里我还希望对所传递的perl脚本名称进行变体化这让我有些头疼，所以我想知道是否有人可以指出一种更好的方法来执行此操作，因为我的方法行不通..谢谢..

I normally call perl scripts from PHP as below and pass in variables this way, and it works fine, however now I am building a component for re-use where I want to also variablize the perl script name that I am passing in and this is giving me some headaches, so I am wondering if anyone can point out a better way to do this as my way isn't working.. thanks..

没有可变的perl文件名的工作方式:

the way that works without variablized perl filename:

$file = "/var/www/other_scripts/perl/apps/perlscript.pl $var1 $var2 $var3 $var4";
ob_start();
passthru($file);
$perlreturn = ob_get_contents();
ob_end_clean();

我尝试对似乎不适合我的perl文件名进行变种，您可以在上面看到它在初始"中甚至包括$ var在内的情况，我觉得很奇怪，但这似乎是它起作用的唯一方法，而且我不确定如何使用可变的perl文件名来复制它:

My attempt to variablize the perl filename that doesn't seem to be working for me, you can see in the above how it is including even the $var(s) in the initial " ", which I find odd but this seems to be the only way that it works and I wasn't sure how to even replicate this with a variablized perl filename:

$perlscript_file = "/var/www/other_scripts/perl/apps/" . $perlscript .".pl";

$file = $perlscript_file . $var1 . $var2  .$var3 . $var4;
ob_start();
passthru($file);
$perlreturn = ob_get_contents();
ob_end_clean();

推荐答案

您的方法无法正常工作，因为您要串联所有没有空格的参数，从而有效地使它们成为一个参数.

Your way is not working because you are concatenating all the parameters without spaces, effectively making them one parameter.

尝试

$perlscript_file = "/var/www/other_scripts/perl/apps/$perlscript.pl $var1 $var2 $var3 $var4";

顺便说一句，如果参数来自外部来源，则必须使用 escapeshellarg() . $perlscript也是如此-如果它来自外部甚至用户输入，请执行

By the way, if the parameters are coming from an external source, you MUST sanitize them using escapeshellarg(). The same goes for $perlscript - if it comes from an external source or even user input, do a escapeshellcmd() on it.

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