PHP Judging Chinese language, English, digital

PHP Judging Chinese, English, digital

$str = ' ASB Tianshui 12 ';

if (Preg_match ("/^[\x7f-\xff]+$/", $str)) {
Echo ' All is Kanji ';
}else {
Echo ' is not all Chinese characters ';
}

/**

PHP comes with the judgment whether it is Chinese,

Eregi (' [^\x00-\x7f] ', $str)//Chinese

Eregi (' [0-9] ', $STR)//number

Eregi (' [a-za-z] ', $STR)//English

*/

if (eregi (' [^\x00-\x7f] ', $str) | | eregi (' [0-9] ', $str) | | eregi (' [a-za-z] ', $str)) {

Echo ' You typed in Chinese and English numbers and fit Oh! '. '
';

echo "Length:". strlen ($STR);

}

/ **

The following two methods are used to determine whether the English characters and numbers are composed of strings,

Or all of them are Chinese-made strings with variable $str or variables at the beginning of this article

*/

if (Preg_match_all ("/^ ([\x81-\xfe][\x40-\xfe]) +$/", $str, $match)) {
Echo ' All is Kanji ';
} else {
Echo ' is not all Chinese characters ';
}

if (Preg_match ("/([\x81-\xfe][\x40-\xfe])/", $str, $match)) {
Echo ' contains Chinese characters ';
} else {
Echo ' does not contain Chinese characters ';
}

/**

This is the JS method, judged a Chinese character accounted for two bytes, a Chinese or a number of one, using the code UTF-8

*/

function Checkstr ($str) {    $output = ';    $a =ereg (' ['. chr (0xa1). ' -'. Chr (0xff). ', $str);    $b =ereg (' [0-9] ', $str);    $c =ereg (' [a-za-z] ', $str);    if ($a && $b && $c) {$output = ' mixed string ' of Chinese numerals in English;}    ElseIf ($a && $b && $c) {$output = ' mixed string of kanji numbers ';}    ElseIf ($a &&! $b && $c) {$output = ' mixed string ' in Chinese characters ';}    ElseIf (! $a && $b && $c) {$output = ' mixed string in English ';}    ElseIf ($a &&! $b && $c) {$output = ' pure kanji ';}    ElseIf (! $a && $b && $c) {$output = ' pure number ';}    ElseIf (! $a &&! $b && $c) {$output = ' plain English ';}    return $output;} Echo Checkstr (' 5 love u ');

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