I am familiar with pcre more then php's POSIX extension :)
and it is said that preg_match() is faster than ereg(), see php manual
for more info :)
function isValid($strData, $bIncludeAlpha=false, $bIncludeNumber=false)
{
switch(true) {
case $bIncludeAlpha && !$bIncludeNumber:
$ptr = "/^[a-zA-Z]+/";
break;
case !$bIncludeAlpha && $bIncludeNumber:
$ptr = "/^[0-9]+/";
break;
case $bIncludeAlpha && $bIncludeNumber:
$ptr = "/^[a-zA-Z0-9]+/";
break;
default:
return false;
}
return preg_match($ptr, $strData);
}
please add "default" statement:)
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Ni Shurong <[EMAIL PROTECTED]>
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