MySQL Traversal string PHP to determine whether the string is all Chinese or contains Chinese implementation code

One, the judgment is all Chinese

Copy the Code code as follows:

$str = "' 324 is";
if (!eregi ("[^\x80-\xff]", "$str")) {
echo "All is Chinese";
}else{
echo "not";
}

Second, the judgment contains the Chinese

Copy the Code code as follows:

$str = "Chinese";
if (Preg_match ("/[\x7f-\xff]/", $str)) {
echo "contains Chinese";
}else{
echo "No Chinese";
}
Or
$pattern = '/[^\x00-\x80]/';
if (Preg_match ($pattern, $str)) {
echo "contains Chinese";
}else{
echo "No Chinese";
}

My methods are tested under Utf-8, and no other codes have been tested.

The above describes the MySQL traversal string in PHP to determine whether the string is all Chinese or Chinese-containing implementation code, including the MySQL traversal string content, I hope to be interested in PHP tutorial friends helpful.

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