Is the PHP string empty?

2 years ago
Ava Mitchell
1 minute

To determine if a PHP string is empty, you can use the following method:

if (empty($str)) {
    echo "字符串为空";
} else {
    echo "字符串不为空";
}

$str is the string variable to be evaluated. empty() is a built-in PHP function that determines if a variable is empty. If the string is empty, the empty() function will return true; otherwise, it will return false.

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