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<?php
$Temperature = array(666,'w3cschool','666',null);
foreach ($Temperature as $key => $value) {
    
    if(is_numeric($value)){
    print("参数是数字或数字字符串<br/>");
    }else{
        
    print("参数不是数字或数字字符串<br/>");
    }
}
?>
 
 
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