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php命令行写shell应用

php可以像java perl python 那样运行,今天发现如果我早早知道这个,或许我不会去学习java 和 python

当年学java不过为了一个程序放在服务器上,不停的跑啊跑,原来php也可以。

php -h

Usage: php [options] [-f]  [--] [args...]
   php [options] -r  [--] [args...]
   php [options] [-B ] -R  [-E ] [--] [args...]
   php [options] [-B ] -F  [-E ] [--] [args...]
   php [options] -S : [-t docroot] [router]
   php [options] -- [args...]
   php [options] -a

  -a               Run as interactive shell
  -c | Look for php.ini file in this directory
  -n               No configuration (ini) files will be used
  -d foo[=bar]     Define INI entry foo with value 'bar'
  -e               Generate extended information for debugger/profiler
  -f         Parse and execute .
  -h               This help
  -i               PHP information
  -l               Syntax check only (lint)
  -m               Show compiled in modules
  -r         Run PHP  without using script tags 
  -B   Run PHP  before processing input lines
  -R         Run PHP  for every input line
  -F         Parse and execute  for every input line
  -E     Run PHP  after processing all input lines
  -H               Hide any passed arguments from external tools.
  -S : Run with built-in web server.
  -t      Specify document root  for built-in web server.
  -s               Output HTML syntax highlighted source.
  -v               Version number
  -w               Output source with stripped comments and whitespace.
  -z         Load Zend extension .

  args...          Arguments passed to script. Use -- args when first argument
                   starts with - or script is read from stdin

  --ini            Show configuration file names

  --rf       Show information about function .
  --rc       Show information about class .
  --re       Show information about extension .
  --rz       Show information about Zend extension .
  --ri       Show configuration for extension .

1.用php命令行的方式执行php脚本,例如/usr/bin/php test.php
缩写 php test.php

test.php

2.脚本开头第一行写上#!/usr/bin/php,然后可以把脚本设为可执行 chmod a+x test.php,之后就可以用命令行的方式直接执行脚本了,例如./test.php

#!/usr/bin/php

执行一小时,看看php会不会挂,我希望一个命令行可以跑到天荒地老

#!/usr/bin/php

3. 外部传入参数

#!/usr/bin/php


./test.php

int(1)
array(1) {
  [0]=>
  string(10) "./test.php"
}

./test.php a java php

int(4)
array(4) {
  [0]=>
  string(10) "./test.php"
  [1]=>
  string(1) "a"
  [2]=>
  string(4) "java"
  [3]=>
  string(3) "php"
}


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