PHP executes common functions of Linux commands Summary, phplinux command Summary _php tutorial

PHP executes common functions of Linux commands Summary, phplinux command Summary

In general, you will rarely use PHP to execute Linux commands, but in special cases you may be using these functions. I used to know that there are two functions that can execute Linux commands, one is exec, and the other is shell_exec. In fact, there are a lot of, combined with the contents of the manual, the following 6 functions.

1,exec function

<?php $test = "Ls/tmp/test"; LS is the directory under Linux, the command exec file ($test, $array); Execute command print_r ($array);? >

The returned results are as follows:

[Root@krlcgcms01 shell]# php./exec.php Array ([0] = 1001.log [1] = 10.log [2] = = 10.tar.gz [3] = = Aaa.tar. GZ [4] = mytest [5] = test1101 [6] = = test1102 [7] = = weblog_2010_09)

2,system function

<?php $test = "Ls/tmp/test"; $last = System ($test);p rint "Last: $last \ n";? >

return Result:

[Root@krlcgcms01 shell]# php system.php 1001.log 10.log 10.tar.gz aaa.tar.gz mytest test1101 test1102 weblog_2010_09 Last: weblog_2010_09

3,passthru function

<?php $test = "Ls/tmp/test";p assthru ($test);? >

4,popen function

<?php $test = "Ls/tmp/test"; $fp = Popen ($test, "R"); Popen hits a process channel while (!feof ($fp)) {//gets something from the channel $out = fgets ($fp, 4096); echo $out;//print it Out} pclose ($FP); >

5,proc_open function

<?php $test = "Ls/tmp/test"; $array = Array ("Pipe", "R"),//Standard input array ("Pipe", "w"),//Standard output contents Array ("Pipe", "w")// Standard output error); $fp = Proc_open ($test, $array, $pipes); Open a process channel echo stream_get_contents ($pipes [1]); Why is $pipes[1], because 1 is the output content proc_close ($FP);? >

6,shell_exec function

<?php $test = "Ls/tmp/test"; $out = Shell_exec ($test); Echo $out;? >

The results of the popen,passthru,proc_open,shell_exec return are as follows:

[Root@krlcgcms01 shell]# php test.php 1001.log 10.log 10.tar.gz aaa.tar.gz mytest test1101 test1102 weblog_2010_09

I can find that on these functions, can execute Linux under the command, I think there should be, welcome to add.

Articles you may be interested in:

• A description of common functions used by PHP to execute Linux system commands
• How to support PHP's Iconv () function on Linux systems
• Using PHP scripts to encrypt strings using the MD5 function under Linux

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