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A small BUG in maxmin function (PHP) is shown in the following figure:
# Psy Shell v0.3.3 (PHP 5.5.30 — cli) by Justin Hileman>>> ceil(-0.5)=> -0.0>>> max(-0.0, 0)=> 0.0>>> max(ceil(-0.5), 0)=> -0.0
In the above demonstration, the ceil function
Take a direct look at the show:
# Psy Shell v0.3.3 (PHP 5.5.30-cli) by Justin hileman>>> ceil ( -0.5) = -0.0>>> max ( -0.0, 0) = 0.0 >>> Max (Ceil ( -0.5), 0) = 0.0
In the above demo, the Ceil function returns a 0.0 when -0.0,max passes the
This article introduces the contents of the PHP-FPM pool, php slow execution log, Open_basedir, PHP-FPM process Management, has a certain reference value, now share to everyone, the need for friends can refer to
Pool configuration for
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;
Php security configuration records and common errors (Summary), common php errors
After the php environment is deployed, some security settings are made. In addition to being familiar with various php vulnerabilities, you can also configure php. ini
program | attack [Global variables]
Variables in PHP do not need to be declared in advance, they are created automatically the first time they are used, and their types do not need to be specified, and they are determined automatically according to
After the php environment is deployed, some security settings are made. in addition to being familiar with various php vulnerabilities, you can also configure php. ini to reinforce the runtime environment of PHP, and PHP has been officially modified
Generally, you do not need to change the PHP settings. it usually works well according to the default configuration. However, developers who are PHP designers consider that users may occasionally need to adjust some features of the PHP language for
Source: chinaaspThis article is translated because the current articles on CGI security are all examples of Perl, and there are few articles specifically about asp,php or JSP security. Shaun Clowes This article more comprehensive introduction of PHP
Nginx+php appear 502 Bad gateway, generally this is not nginx problem, but because of fastcgi or PHP problems caused, common have the following several.1. PHP.ini Memory_limit is too small (this must be noted if there are individual PHP program
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