$str = "中文测试";
preg_match_all("/([\x81-\xfe][\x40-\xfe])/", $str, $ch);
$patterns = array_unique($ch[0]);
print_r($patterns);
preg_match_all("/([\x81-\xfe][\x40-\xfe])/", $str, $ch);
$patterns = array_unique($ch[0]);
print_r($patterns);
function regInput(obj, reg, inputStr)
{
var docSel = document.selection.createRange()
if (docSel.parentElement().tagName != "INPUT") return false
oSel = docSel.duplicate()
oSel.text = ""
var srcRange = obj.createTextRange()
oSel.setEndPoint("StartToStart", srcRange)
var str = oSel.text + inputStr + srcRange.text.substr(oSel.text.length)
return reg.test(str)
}
</script><input onkeypress = "return regInput(this, /^$/, String.fromCharCode(event.keyCode))"
onpaste = "return regInput(this, /^[\u4E00-\u9FA5]*$/, window.clipboardData.getData('Text'))"
ondrop = "return regInput(this, /^[\u4E00-\u9FA5]*$/, event.dataTransfer.getData('Text'))"
>