src/WorkerPool.php
public function setChildProcessTitleFormat($string) {
		if ($this->created) {
			throw new WorkerPoolException('Cannot set the Parent\'s Process Title Format for a created pool.');
		}
		$this->childProcessTitleFormat = ProcessDetails::sanitizeProcessTitleFormat($string);
		return $this;
	}
public function setChildProcessTitleFormat($string) {
		if ($this->created) {
			throw new WorkerPoolException('Cannot set the Parent\'s Process Title Format for a created pool.');
		}
		$this->childProcessTitleFormat = ProcessDetails::sanitizeProcessTitleFormat($string);
		return $this;
	}
Sets the process title of the child

Listing permitted replacments
%i%         The Child's Number
%basename%  The base name of PHPSELF
%fullname%  The value of PHPSELF
%class%     The Worker's Classname
%state%     The Worker's State

@param string $string the process title of the child
@return WorkerPool
@throws \QXS\WorkerPool\WorkerPoolException in case the WorkerPool has already been created
@throws \DomainException in case the $string value is not within the permitted range