Program execution 函数

注释

Warning

Open files with lock (especially open sessions) should be closed before executing a program in the background.

These functions are also closely related to the backtick operator. Also, while in 安全模式 you must consider the safe_mode_exec_dir directive.

escapeshellarg — Escape a string to be used as a shell argument
escapeshellcmd — Escape shell metacharacters
exec — Execute an external program
passthru — Execute an external program and display raw output
proc_close — Close a process opened by proc_open and return the exit code of that process
proc_get_status — Get information about a process opened by proc_open
proc_nice — Change the priority of the current process
proc_open — Execute a command and open file pointers for input/output
proc_terminate — Kills a process opened by proc_open
shell_exec — Execute command via shell and return the complete output as a string
system — Execute an external program and display the output