$var = "AMG";
$exp =" / /";
print_r (preg_split ($exp,$var));
) result:
Array ( [0] => [1] => A [2] => M [3] => G [4] => )
read the manual and the explanation is:
pattern subject FALSE
does not quite understand what this sentence means, why does it return two empty elements?
parameter is missing, the PREG_SPLIT_NO_EMPTY flag is set, and preg_split () will return only the delimited non-empty parts.
preg_split($exp, $var, -1, PREG_SPLIT_NO_EMPTY);Previous: How to customize the id of webuploader
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