具有匿名功能的Php array_walk用于过滤掉结果

Question

I have a big set of time records for a project and I want to filter out all but those posted by a single employee.

array_walk($timeRecords, function($timeRecord, $index) use ($employee) {
    if ($timeRecord->employeeId != $employee->id) {
        unset($timeRecords[$index]);
    }
});

You can see what I'm trying to do. How do you go about doing this with anon functions and closures? Obviously $timeRecords is not defined inside the anonymous function. Thanks.

Answer 1

Calimero pointed out that's the wrong tool for the job. The desired effect can be achieved using array_filter. Array_walk appears to be designed for modifying individual array items by reference.

This is how to achieve what I was wanting.

$timeRecords = array_filter($timeRecords, function($timeRecord) use ($employee) {
    if ($timeRecord->EmployeeId == $employee->EmployeeId) {
        return $timeRecord;
    }
});