PHP Manual
PHP Options/Info Functions
Gets PHP's process ID

getmypid

(PHP 4, PHP 5, PHP 7, PHP 8)

getmypid — Gets PHP's process ID

Description

getmypid(): int|false

Gets the current PHP process ID.

Parameters

This function has no parameters.

Return Values

Returns the current PHP process ID, or false on error.

Notes

Warning

Process IDs are not unique, thus they are a weak entropy source. We recommend against relying on pids in security-dependent contexts.

See Also

getmygid() - Get PHP script owner's GID
getmyuid() - Gets PHP script owner's UID
get_current_user() - Gets the name of the owner of the current PHP script
getmyinode() - Gets the inode of the current script
getlastmod() - Gets time of last page modification