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@ 2014-09-01T12:01:37Z

<?php
touch("testfile");

function mylock() {
  $F1 = fopen("testfile","r");
  if (flock($F1,LOCK_EX|LOCK_NB)) echo "First lock OK\n"; else echo "First lock FAIL\n";
  $F2 = fopen("testfile","r");
  if (flock($F2,LOCK_EX|LOCK_NB)) echo "Second lock OK\n"; else echo "Second lock FAIL\n";
}

mylock();
echo "Function returned.\n";
mylock();

unlink("testfile");

Output
Performance
VLD
References
Branches

touch: documentation ( source)
flock: documentation ( source)
unlink: documentation ( source)
fopen: documentation ( source)

preferences:dark modelive preview

42.08 ms | 402 KiB | 5 Q