php命令行用法簡介

時間 2019-11-20

標籤 php 命令行用法簡介欄目 PHP 简体版

原文原文鏈接

Php是一個很是流行的web服務端腳本語言。其實，php不單單能夠在web服務器中充當重要角色。在命令行同樣能夠執行。php

本文中，筆者爲各位介紹下php在命令行中的使用方法。html

一、查看php的版本、配置

在命令行中輸入php –v 便可查看當前php的版本。程序員

其餘的選項有： –m、-i。筆者在這裏就不給出列子了。web

-m 會顯示當前php加載的有效模塊。shell

-i 則輸出無html格式的phpinfo。api

使用 –ini 選項能夠輸出當前php加載ini配置文件的數量、路徑信息。瀏覽器

二、在命令行中運行php程序

從命令行運行php很是簡單。但有些注意事項須要各位瞭解下。諸如$_SESSION之類的服務器變量是沒法在命令行中使用的，其餘代碼的運行則和web服務器中徹底同樣^_^。bash

Php代碼

<?php
echo 「運行php命令行echo」;
?>

把上面的代碼另存爲hello.php 。在命令行中敲入 php –f hello.php。顯示結果以下：
服務器

在命令行中執行php文件的好處之一就是能夠經過腳本實現一些計劃任務的執行。而毋須經過web服務器^_^。app

固然，咱們也能夠直接在php中調試代碼：輸入php –r 指令，會出現一個」>」符號。這表示已經進入到php的shell中，能夠直接寫代碼，並執行。

Java代碼

-bash-3.2$ php -r '
> for($i=0;$i<2;$i++){
> echo "Number: {$i}\n";
> }
> '
Number: 0
Number: 1

還可使用php –a 命令打開交互模式，輸入一行代碼，php會實時輸出結果。

三、檢測php語法、高亮輸出

不用執行代碼，咱們能夠在命令行下檢測php文件的語法錯誤。

Java代碼

-bash-3.2$ php -l hello.php
No syntax errors detected in hello.php

程序員常常會須要將php代碼高亮原樣輸出，使用php –s 便可

Java代碼

-bash-3.2$ php -s hello.php
<code>
<?php
echo
'ddd'
; <span
style="color: #0000BB">?>

在瀏覽器中的顯示效果

四、查看php手冊

從php5.1.2開始，程序員們能夠在php命令行下查看手冊了，輸入php –rf function。會打印出該函數的語法簡介

Java代碼

-bash-3.2$ php --rf strip_tags
Function [ <internal:standard> function strip_tags ] {
- Parameters [2] {
Parameter #0 [ <required> $str ]
Parameter #1 [ <optional> $allowable_tags ]
}
}

若是要查看類使用 –rc；查看擴展使用 –re。

Php命令行的使用方法介紹到這裏就結束了。Enjoy It！

來源：http://www.cnphp.info/php-command-line-useage-intro.html

php - Unix, Linux Command

NAME

php - PHP Command Line Interface ’CLI’

SYNOPSIS

php [options] [ -f ] file [[--] args...]

php [options] -r code [[--] args...]

php [options] [-B code] -R code [-E code] [[--] args...]

php [options] [-B code] -F file [-E code] [[--] args...]

php [options] -- [ args...]

php [options] -a

DESCRIPTION

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. This is the command line interface that enables you to do the following:

You can parse and execute files by using parameter -f followed by the name of the file to be executed.

Using parameter -r you can directly execute PHP code simply as you would do inside a .php file when using theeval() function.

It is also possible to process the standard input line by line using either the parameter -R or -F. In this mode each separate input line causes the code specified by -R or the file specified by -F to be executed. You can access the input line by $argn. While processing the input lines $argi contains the number of the actual line being processed. Further more the parameters -B and -E can be used to execute code (see -r) before and after all input lines have been processed respectively. Notice that the input is read from STDIN and therefore reading from STDIN explicitly changes the next input line or skips input lines.

If none of -r -f -B -R -F or -E is present but a single parameter is given then this parameter is taken as the filename to parse and execute (same as with -f). If no parameter is present then the standard input is read and executed.

OPTIONS

Tag Description

--interactive -a	Run PHP interactively. This lets you enter snippets of PHP code that directly get executed. When readline support is enabled you can edit the lines and also have history support.
--bindpathaddress:port\|port -baddress:port\|port
	Bind Path for external FASTCGI Server mode (CGI only).
--no-chdir -C	Do not chdir to the script’s directory (CGI only).
--no-header -q	Quiet-mode. Suppress HTTP header output (CGI only).
--timing count -T count	Measure execution time of script repeated count times (CGI only).
--php-inipath\|file -c path\|file	Look for php.ini file in the directory path or use the specified file
--no-php-ini -n	No php.ini file will be used
--definefoo[=bar] -d foo[=bar]
	Define INI entry foo with value bar
-e	Generate extended information for debugger/profiler
--file file -f file	Parse and execute file
--global name -g name	Make variable name global in script.
--help -h	This help
--hide-args -H	Hide script name (file) and parameters (args...) from external tools. For example you may want to use this when a php script is started as a daemon and the command line contains sensitive data such as passwords.
--info -i	PHP information and configuration
--syntax-check -l	Syntax check only (lint)
--modules -m	Show compiled in modules
--run code -r code	Run PHP code without using script tags ’<?..?>’
--process-begin code -B code
	Run PHP code before processing input lines
--process-codecode -R code
	Run PHP code for every input line
--process-filefile -F file
	Parse and execute file for every input line
--process-endcode -E code	Run PHP code after processing all input lines
--syntax-highlight -s	Output HTML syntax highlighted source
--version -v	Version number
--stripped -w	Output source with stripped comments and whitespace
--zend-extension file -z file
	Load Zend extension file
args...	Arguments passed to script. Use ’--’ args when first argument starts with ’-’ or script is read from stdin
--rfunction	name
--rf	name Shows information about function name
--rclass	name
--rc	name Shows information about class name
--rextension	name
--re	name Shows information about extension name
--rextinfo	name
--ri	name Shows configuration for extension name
--ini	Show configuration file names

FILES

Tag Description

php-cli.ini	The configuration file for the CLI version of PHP.
php.ini	The standard configuration file will only be used when php-cli.ini cannot be found.

EXAMPLES

Tag Description

php -r ’echo "Hello World\n";’
	This command simply writes the text "Hello World" to standard out.
php -r ’print_r(gd_info());’
	This shows the configuration of your gd extension. You can use this to easily check which image formats you can use. If you have any dynamic modules you may want to use the same ini file that php uses when executed from your webserver. There are more extensions which have such a function. For dba use:php -r ’print_r(dba_handlers(1));’
php -R ’echo strip_tags($argn)."\n";’
	This PHP command strips off the HTML tags line by line and outputs the result. To see how it works you can first look at the following PHP command 'php -d html_errors=1 -i' which uses PHP to output HTML formatted configuration information. If you then combine those two 'php ...\|php ...' you’ll see what happens.
php -E ’echo "Lines: $argi\n";’
	Using this PHP command you can count the lines being input.
php -R ’@$l+=count(file($argn));’ -E ’echo "Lines:$l\n";’
	In this example PHP expects each input line being a file. It counts all lines of the files specified by each input line and shows the summarized result. You may combine this with tools like find and change the php scriptlet.
php -R ’echo "$argn\n"; fgets(STDIN);’
	Since you have access to STDIN from within -B -R -F and -E you can skip certain input lines with your code. But note that in such cases $argi only counts the lines being processed by php itself. Having read this you will guess what the above program does: skipping every second input line.