从 php 调用 swi-prolog [英] invoking swi-prolog from php

问题描述

我正在尝试从 php 脚本中调用 swi-prolog，例如:

I am trying to invoke swi-prolog from within a php script like :

exec("start plwin.exe -f C:\\path\\load.pl -g run_from_file.", $os1);
print_r($os1);

我可以看到 prolog 窗口被打开并编译文件，但立即退出，显示退出状态为 1.我确定它没有执行我想要执行的谓词.

I can see that prolog window gets opened and complies the file, but immediately exits displaying an exit status as 1. I am sure that it is not executing the predicate I want to to execute.

是否还有其他方法可以使用适当的参数调用 prolog 并保持窗口 open 而不自动退出?

Is there any other to invoke prolog with appropriate parameters and keep the window open without automatically exiting?

更新:我将系统环境变量配置为安装 prolog 的路径.

UPDATE : I configured the system env variables to the path where prolog is installed.

推荐答案

我也使用了 http://www.j-paine.org/dobbs/prolog_from_php.html ，它给了我一个空白屏幕.要在使用 swipl 的服务器上运行 prolog 文件，我改为:

I have also used the tutorial from http://www.j-paine.org/dobbs/prolog_from_php.html , and it was giving me a blank screen. To run prolog file on a server where swipl is used, I changed to:

$cmd = swipl -f /path/to/myfile.pl -g test,halt -t 'halt(1)';

我在这里找到了所有需要的信息:http://www.swi-prolog.org/pldoc/man?section=cmdline，第 2.4.4 节

I found all needed information here: http://www.swi-prolog.org/pldoc/man?section=cmdline , in section 2.4.4

php 文件的其余部分与示例中相同，现在它真正从 myfile.pl 执行测试.

The rest of the php file is the same as in the example, and now it really executes test from myfile.pl.

也许他可以帮助某人.

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