4.50 (does not support the extra flags):

 Code:
$array = "a","b","c"
? AScan($array,"test",,)

$array = "a","b","c",""
? AScan($array,"test",,)

$array = "a","","b","c"
? AScan($array,"test",,)

Sleep 10


 Quote:

-1
-1
-1


4.52:

 Code:
$array = "a","b","c"
? AScan($array,"test",,,1)

$array = "a","b","c",""
? AScan($array,"test",,,1)

$array = "a","","b","c"
? AScan($array,"test",,,1)

Sleep 10


 Quote:

-1
3
1
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