PHP uses the finfo_file () function to detect the implementation of the uploaded image type,
This example describes how PHP uses the finfo_file () function to detect the uploaded image type. We will share this with you for your reference. The
PHP Tutorial Configuration Chinese Narration
Let's see what you see, php.ini.
[PHP]
;;;;;;;;;;;; WARNING;;;;;;;;;;;;; This is the default settings file for new PHP installations.; By default, PHP installs itself with a configuration suitable for;
The security practice of PHP, which must be known by system administrators, is an open source server scripting language and widely used. The Apacheweb server provides the convenience of accessing files and content through HTTP or HTTPS. Improper
The security practice of PHP, which must be known by system administrators, is an open source server scripting language and widely used. The Apacheweb server provides the convenience of accessing files and content through HTTP or HTTPS. Improper
PHP features: the command line mode starts with version 4.3.0. PHP provides a new type of cli sapi (Server Application Programming Interface, Server Application Programming Port) support, named CLI, command Line Interface, that is, Command Line
Original address: http://drops.wooyun.org/web/2718 Category: Web security(This article focuses on using system commands)First, view the access logSee if there is a file upload operation (POST method),[Plain]View PlainCopy
Detecting file types
function Checkfiletype ($fileName) {
$file = fopen ($fileName, "RB");
$bin = Fread ($file, 2); Read-only 2 bytes
Fclose ($file);
c is an unsigned integer, the net search is C, signed integer, this will
For a php://input introduction, the PHP Official Handbook document has a very clear overview of it.
"Php://input allows to read raw POST data. It is a less memory intensive alternative to $HTTP _raw_post_data and does no need any special php.ini.
It mainly includes php file processing, file processing, file pointer-related processing functions, file control functions, including PHP file processing, file processing, file pointer-related processing functions, and file control functions.
PHP
PHP security practices that system administrators must know
PHP is an open source server-side scripting language that is widely used. The Apache Web server provides this convenience: access to files and content via HTTP or HTTPS protocol. Improperly
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