PHP Manual
POSIX 函数
Return the parent process identifier

posix_getppid

(PHP 4, PHP 5, PHP 7)

posix_getppid — Return the parent process identifier

说明

posix_getppid ( void ) : int

Return the process identifier of the parent process of the current process.

返回值

Returns the identifier, as an integer.

范例

Example #1 Example use of posix_getppid()

 <?php
echo posix_getppid(); //8259
?>

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