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Alex Rivera
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I have to check the buffer input to a PHP socket server as fast as possible. To do so, I need to know if the input message $buffer contains any other character(s) than the following: a-z, A-Z, 0-9, #, -, . and $ I'm currently using the following ereg function, but wonder if there are ways to optimize the speed. Should I maybe use a different function, or a different regex? if (ereg("[A-Za-z0-9]\.\#\-\$", $buffer) === false) { echo "buffer only contains valid characters: a-z, A-Z, 0-9, #, -, ., $"; }
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