闲者博客 - 获取

PHP获取当前页面URL

飞鱼 — Fri, 25 Feb 2022 18:51:51 +0800

function curPageURL() { 
    $pageURL = 'http'; 
    if (!empty($_SERVER['HTTPS'])) {$pageURL .= "s";} 
    $pageURL .= "://"; 
    if ($_SERVER["SERVER_PORT"] != "80") { 
        $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; 
    } else { 
        $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"]; 
    } 
    return $pageURL; 
}
echo curPageURL();

PHP获取文件扩展名（后缀）

飞鱼 — Fri, 25 Feb 2022 18:49:56 +0800

function getExtension($filename){ 
  $myext = substr($filename, strrpos($filename, '.')); 
  return str_replace('.','',$myext); 
}
 
$filename = '我的文档.doc'; 
echo getExtension($filename);

PHP获取文件大小并格式化

飞鱼 — Fri, 25 Feb 2022 18:48:25 +0800

function formatSize($size) { 
    $sizes = array(" Bytes", " KB", " MB", " GB", " TB", " PB", " EB", " ZB", " YB"); 
    if ($size == 0) {  
        return('n/a');  
    } else { 
      return (round($size/pow(1024, ($i = floor(log($size, 1024)))), 2) . $sizes[$i]);  
    } 
}
 
$thefile = filesize('test_file.mp3'); 
echo formatSize($thefile);