![]() ![]() If you do not validate enough, you can have trouble. (A) Better not to create files or folders with user-supplied names. Management, so the Apache user is allowed to delete files in Situation where a PHP web interface is regularly used for file Like to delete a file in their home directory. That you read from and write to are the appropriate ones.Ĭonsider the following script, where a user indicates that they'd Obvious implications, in that you need to ensure that the files To read system files such as /etc/passwd, modify your ethernetĬonnections, send massive printer jobs out, etc. It's entirely possible to write a PHP script that will allow you Since PHP was designed to allow user level access to the filesystem, That they are safe for reading by all users who have access to that Should be taken with any files which are world readable to ensure You to control which files in the filesystem may be read. Respect to permissions on a file and directory basis. PHP is subject to the security built into most server systems with Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search
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