无证程序员被拘留后——linux能正常运行的程序,php系统调用时却不能运行!解决方案
无证程序员被拘留后——linux能正常运行的程序,php系统调用时却不能运行!!!!!
我自己的cli程序,在linux下能正常运行(带参数的),但用php的exec调用后却不能执行,
还有,返回的数组用isset测试不为空,输出时又没数据。
可以肯定的是linux与php均无问题,因为其他程序都正常,叫这一个。
这是怎么回事?这种问题从哪个入手?从没遇到过。
有点急,马上要提交源码了!!!!!!!!!!!!
我有个软考的DS证书,应该不会被拘留吧,哈哈……
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用system调用试试
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是不是用户权限的问题啊
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话说回来 php的exec下的操作不是一般的有问题,我以前试过测试个代码就是死活不能...最后只好放弃
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权限设置为 -rwxr-xr-x
把所有的错误信息打开,看看报什么错误!
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不止是用户权限,还有运行环境,也可能有差异,所以要你把 exec() 那一行的代码贴出来呀。
虽然真正的原因不一定在这里,虽然这不一定能解决你的问题,但你总不能让大家猜你的做法来判断原因吧?
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几乎可以肯定是你的 a.out 在 -L 3 的情况下执行了某些犯禁的操作。
BTW: 当 $result = false 的时候就会出现“isset($result) == 1 而且 print_r($result) 为空”的情况,这没有什么奇怪的。
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