How can I use file_put_contents() with FILE_APPEND | LOCK_EX safety?

Question

I\'m using:

file_put_contents(\"peopleList.txt\", $person, FILE_APPEND | LOCK_EX);

to write to the end of a file and to make sure no one else (

Answer 1

If the function fails to get the lock for the file then it will return an error you can use.

if ($result === false) { print "failed to lock"; }

Now if you want to try to get a the lock a few times just use a loop to keep trying to write to the file.