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Data type Integral typeFloating point TypeBoolean typeStringArrayObject Conversion between types(int) $val; Convert to integral type (float) $val; Convert to floating point type (string) $val; Convert to String (bool) $val; Convert to Boolean type (array) $val; Converts an array that contains only one element of $val. [$val] (object) $val; Convert to an object, the scalar property of the object points to $val. {scalar: $val} Get typeUse the function string GetType ($val); Get the variable typ

CGI CGI is a Common Gateway Interface. It is a tool for the HTTP server to "talk" with programs on your or other machines, the program must run on the network server. CGI can be written in any language as long as it has standard input, output, and environment variables. Such as php, perl, and tcl.FastCGI FastCGI is like a long-live CGI. It can be executed all the time, it will not take time to fork every time (this is the most criticized fork-and-exec

PHP error mechanism Knowledge Summary, php mechanism summary. PHP error mechanism Knowledge Summary, php mechanism summary PHP error mechanism is also very complex, has been done for a few years php, has not been carefully summari

First, let's discuss the file inclusion vulnerability. The first question is, what is the remote file inclusion vulnerability quot ;? The answer is: when the server uses the php feature (function) to include any file, the source of the file to be included is not strictly filtered, so it can contain a malicious file, however, we can construct this malicious file to achieve evil purposes. First, let's discuss the file inclusion vulnerability. The first

Php: Set the scheduled task execution php file in WINDOWS. I found some methods on the Internet to execute PHP scheduled tasks in WINDOWS. one of them was completely written, but unfortunately I did not pass it. Finally, I had to combine the methods of various schools to find some methods to execute PHP scheduled tasks

PHP tips: who initiated your mail (), PHP ?. A strange problem occurs in the number of letters sent by the PHP internal component: Warning: mail (): Failedtoconnecttomailserveratlocalhostport25, when verifyyourSMTPandsmtp PHP sends a letter, a strange problem occurs: Warning: mail (): Failed to connect to mailserver at

Php performs random replacement of elements in the logarithm group, and changes of php array elements. Php: the method for randomly changing elements in the logarithm group. The example in this article describes how to randomly change elements in the logarithm group of php. Share it with you for your reference. Specifi

What is a Hyper global variable Many of the predefined variables in PHP are "hyper-global", which means they are available in all scopes of a script. There is no need to perform a global $variable in a function or method; You can access them. $_SERVER//查看服务器信息$_GET//地址栏参数$_POST//表单提交的值$_REQUEST//接受$_GET或$_POST的值$_FILES//文件上传$_COOKIE//跟踪用户状态$_SESSION//跟踪用户状态$GLOBALS//获取所有全局变量的值 $_server:You can view information about the server, which holds informatio

PHP implements file upload and multi-file upload ,. PHP implements file upload and multi-file upload. in PHP program development, file upload is a very common function and one of the essential skills of PHP programmers. It is worth noting that file upload and multi-file upload are implemented in

PHP development debugging environment configuration, php development debugging. PHP development debugging environment configuration, php development debugging is based on wamp and EclipseforPHPDevelopers introduction in order to build a PHP development debugging environment,

This article is about the PHP surface question five how nginx call PHP and PHP-FPM function and work principle, have a certain reference value, now share to everyone, have the need of friends can refer to Nginx How to invoke PHP The use of nginx+php as an architectural mode

PHP files believe a lot of computer veteran do not know it? Today there is a computer computer Pepsi Net Netizen asked the editor this question: "How to open php file?" ", in fact, we do not need to open PHP files, most simply because download things, the wrong download to become a Web file, the main download station is the download connection is actually

1 "Download PHP source code#wget Http://cn2.php.net/get/php-5.4.30.tar.gz/from/this/mirrorThe version of official website 5.2 does not seem to offerTo PHP-5.2.13-FPM php-5.2.13.tar.gz compatible to my Baidu share address download Http://pan.baidu.com/s/1sjwLdNZ2 "Download php