Home Backend Development PHP Tutorial 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!解决方案

Jun 13, 2016 am 10:17 AM
exec isset linux php

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……

------解决方案--------------------
用system调用试试
------解决方案--------------------
是不是用户权限的问题啊
------解决方案--------------------
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
------解决方案--------------------
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!
------解决方案--------------------

探讨
代码不好贴啦,而且也不会有问题啦。
我用php拼接的带参数的命令原模原样的复制在linux上运行是可以,而且得到了正确的输出。

------解决方案--------------------
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?
------解决方案--------------------
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。
------解决方案--------------------
探讨
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。
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1663
14
PHP Tutorial
1266
29
C# Tutorial
1239
24
PHP and Python: Different Paradigms Explained PHP and Python: Different Paradigms Explained Apr 18, 2025 am 12:26 AM

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

Choosing Between PHP and Python: A Guide Choosing Between PHP and Python: A Guide Apr 18, 2025 am 12:24 AM

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

Linux Architecture: Unveiling the 5 Basic Components Linux Architecture: Unveiling the 5 Basic Components Apr 20, 2025 am 12:04 AM

The five basic components of the Linux system are: 1. Kernel, 2. System library, 3. System utilities, 4. Graphical user interface, 5. Applications. The kernel manages hardware resources, the system library provides precompiled functions, system utilities are used for system management, the GUI provides visual interaction, and applications use these components to implement functions.

PHP and Python: A Deep Dive into Their History PHP and Python: A Deep Dive into Their History Apr 18, 2025 am 12:25 AM

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP's Impact: Web Development and Beyond PHP's Impact: Web Development and Beyond Apr 18, 2025 am 12:10 AM

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

The Continued Use of PHP: Reasons for Its Endurance The Continued Use of PHP: Reasons for Its Endurance Apr 19, 2025 am 12:23 AM

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

laravel installation code laravel installation code Apr 18, 2025 pm 12:30 PM

To install Laravel, follow these steps in sequence: Install Composer (for macOS/Linux and Windows) Install Laravel Installer Create a new project Start Service Access Application (URL: http://127.0.0.1:8000) Set up the database connection (if required)

Docker on Linux: Containerization for Linux Systems Docker on Linux: Containerization for Linux Systems Apr 22, 2025 am 12:03 AM

Docker is important on Linux because Linux is its native platform that provides rich tools and community support. 1. Install Docker: Use sudoapt-getupdate and sudoapt-getinstalldocker-cedocker-ce-clicotainerd.io. 2. Create and manage containers: Use dockerrun commands, such as dockerrun-d--namemynginx-p80:80nginx. 3. Write Dockerfile: Optimize the image size and use multi-stage construction. 4. Optimization and debugging: Use dockerlogs and dockerex

See all articles