common_functions.php

这是一个可以显示localhost 的系统信息的php 生成网页

// it returns a formated number string, with unit identifier.
function format_bytesize ($intKbytes, $intDecplaces = 2) {
	global $text;
	$strSpacer = ' ';
	
	if( $intKbytes > 1048576 ) {
		$strResult = sprintf( '%.' . $intDecplaces . 'f', $intKbytes / 1048576 );
		$strResult .= $strSpacer . $text['gb'];
	} elseif( $intKbytes > 1024 ) {
		$strResult = sprintf( '%.' . $intDecplaces . 'f', $intKbytes / 1024);
		$strResult .= $strSpacer . $text['mb'];
	} else {
		$strResult = sprintf( '%.' . $intDecplaces . 'f', $intKbytes );
		$strResult .= $strSpacer . $text['kb'];
	}
	
	return $strResult;
}

function format_speed( $intHz ) {
	$strResult = "";
	
	if( $intHz < 1000 ) {
		$strResult = $intHz . " Mhz";
	} else {
		$strResult = round( $intHz / 1000, 2 ) . " GHz";
	}
	
	return $strResult;
}

function get_gif_image_height( $image ) { 
	// gives the height of the given GIF image, by reading it's LSD (Logical Screen Discriptor)
	// by Edwin Meester aka MillenniumV3
	// Header:
	//3bytes		Discription
	// 3bytes		Version
	// LSD:
	//2bytes		Logical Screen Width
	// 2bytes		Logical Screen Height
	// 1bit		Global Color Table Flag
	// 3bits		Color Resolution
	// 1bit		Sort Flag
	// 3bits		Size of Global Color Table
	// 1byte		Background Color Index
	// 1byte		Pixel Aspect Ratio
	// Open Image
	$fp = fopen( $image, 'rb' ); 
	// read Header + LSD
	$strHeaderandlsd = fread( $fp, 13 );
	fclose( $fp ); 
	// calc Height from Logical Screen Height bytes
	$intResult = ord( $strHeaderandlsd{8} ) + ord( $strHeaderandlsd{9} ) * 255;
	
	return $intResult;
} 

// Check if a string exist in the global $hide_mounts.
// Return true if this is the case.
function hide_mount( $strMount ) {
	global $hide_mounts;
	
	if( isset( $hide_mounts ) && is_array( $hide_mounts ) && in_array( $strMount, $hide_mounts ) ) {
		return true;
	} else {
		return false;
	}
}

// Check if a string exist in the global $hide_fstypes.
// Return true if this is the case.
function hide_fstype( $strFSType ) {
	global $hide_fstypes;
	
	if( isset( $hide_fstypes ) && is_array( $hide_fstypes ) && in_array( $strFSType, $hide_fstypes ) ) {
		return true;
	} else {
		return false;
	}
}

function uptime( $intTimestamp ) {
	global $text;
	$strUptime = '';
    
	$intMin = $intTimestamp / 60;
	$intHours = $intMin / 60;
	$intDays = floor( $intHours / 24 );
	$intHours = floor( $intHours - ( $intDays * 24 ) );
	$intMin = floor( $intMin - ( $intDays * 60 * 24 ) - ( $intHours * 60 ) );
	
	if( $intDays != 0 ) {
		$strUptime .= $intDays. "&nbsp;" . $text['days'] . "&nbsp;";
	}
	if( $intHours != 0 ) {
		$strUptime .= $intHours . "&nbsp;" . $text['hours'] . "&nbsp;";
	}
	$strUptime .= $intMin . "&nbsp;" . $text['minutes'];
	
	return $strUptime;
}

//Replace some chars which are not valid in xml with iso-8859-1 encoding
function replace_specialchars( &$strXml ) {
	$arrSearch = array( chr(174), chr(169), chr(228), chr(246), chr(252), chr(214), chr(220), chr(196) );
	$arrReplace = array( "(R)", "(C)", "ae", "oe", "ue", "Oe", "Ue", "Ae" );
	$strXml = str_replace( $arrSearch, $arrReplace, $strXml );
}

// find duplicate entrys and count them, show this value befor the duplicated name
function finddups( $arrInput ) {
	$arrResult = array();
	
	if( is_array( $arrInput ) ) {
		$arrBuffer = array_count_values( $arrInput );
		foreach( $arrBuffer as $strKey => $intValue) {
			if( $intValue > 1 ) {
				$arrResult[] = "(" . $intValue . "x) " . $strKey;
			} else {
				$arrResult[] = $strKey;
			}
		}
	}
	
	return $arrResult;
}

function rfts( $strFileName, $intLines = 0, $intBytes = 4096, $booErrorRep = true ) {
	global $error;
	$strFile = "";
	$intCurLine = 1;
  
	if( file_exists( $strFileName ) ) {
		if( $fd = fopen( $strFileName, 'r' ) ) {
			while( !feof( $fd ) ) {
				$strFile .= fgets( $fd, $intBytes );
				if( $intLines <= $intCurLine && $intLines != 0 ) {
					break;
				} else {
					$intCurLine++;
				}
			}
			fclose( $fd );
		} else {
			if( $booErrorRep ) {
				$error->addError( 'fopen(' . $strFileName . ')', 'file can not read by phpsysinfo', __LINE__, __FILE__ );
			}
			return "ERROR";
		}
	} else {
		if( $booErrorRep ) {
			$error->addError( 'file_exists(' . $strFileName . ')', 'the file does not exist on your machine', __LINE__, __FILE__ );
		}
		return "ERROR";
	}
	
	return $strFile;
}

function gdc( $strPath, $booErrorRep = true ) {
	global $error;
	$arrDirectoryContent = array();
	
	if( is_dir( $strPath ) ) {
		if( $handle = opendir( $strPath ) ) {
			while( ( $strFile = readdir( $handle ) ) !== false ) {
				if( $strFile != "." && $strFile != ".." && $strFile != "CVS" ) {
					$arrDirectoryContent[] = $strFile;
				}
			}
			closedir( $handle );
		} else {
			if( $booErrorRep ) {
				$error->addError( 'opendir(' . $strPath . ')', 'directory can not be read by phpsysinfo', __LINE__, __FILE__ );
			}
		}
	} else {
		if( $booErrorRep ) {
			$error->addError( 'is_dir(' . $strPath . ')', 'directory does not exist on your machine', __LINE__, __FILE__ );
		}
	}
	
	return $arrDirectoryContent;
}

function temperature( $floatTempC ) {
    global $temperatureformat, $text, $error;
    $strResult = "&nbsp;";
    
    switch( strtoupper( $temperatureformat ) ) {
	case "F":
	    $floatFahrenheit = $floatTempC * 1.8 + 32;
	    $strResult .= round( $floatFahrenheit ) . $text['degreeF'];
	    break;
	case "C":
	    $strResult .= round( $floatTempC ) . $text['degreeC'];
	    break;
	case "F-C":
	    $floatFahrenheit = $floatTempC * 1.8 + 32;
	    $strResult .= round( $floatFahrenheit ) . $text['degreeF'];
	    $strResult .= "&nbsp;(";
	    $strResult .= round( $floatTempC ) . $text['degreeC'];
	    $strResult .= ")";
	    break;
	case "C-F":
	    $floatFahrenheit = $floatTempC * 1.8 + 32;
	    $strResult .= round( $floatTempC ) . $text['degreeC'];
	    $strResult .= "&nbsp;(";
	    $strResult .= round( $floatFahrenheit ) . $text['degreeF'];
	    $strResult .= ")";
	    break;
	default:
	    $error->addError( 'temperature(' . $floatTempC . ')', 'wrong or unspecified temperature format', __LINE__, __FILE__ );
	    break;
    }
	
    return $strResult;
}
?>