PHP Image processing class library and demo sharing

Simply write a PHP image processing class library, although the function is relatively small, but at present also useless to too advanced, later used to fill it, or the point of the suggestion add what function, or what needs can tell me, I have time to add, if who has extended to this class library, Also trouble to take out everyone share, the code is now can be used on the line, considering the things are not many, what better advice please tell me, thank you

img.php

<?php/** * Created by Phpstorm. * User:mction * DATE:2015/5/14 0014 * time:15:36 * Simple Image class library, all relative paths in this class are based on the Web site root directory, if you need to modify, modify the constant __webroot__ can * function: Specify the text content to create a picture (no    In Chinese), create a captcha picture, create a thumbnail, and other features to be continued * Method: * Style (array $Options) to set the picture style, reset to default style before each setting * Create_img_png () Create Png image, related properties are specified by style * Create_img_jpeg () Creates a Jpeg image, the associated property is specified by the style * create_verify () to create a CAPTCHA image, the related property is specified by the style * get_verify () to obtain the code value created, MD5 encryption * L Oad_img (string $FilePath) loads an image, creates an image source for another method call source, FilePath the image relative to the path * CREATE_THUMB (String $FileName, String $FilePath) Creates a thumbnail of the image loaded by load_img (), filename is the saved image prefix, filepath is the relative path to the saved image, and does not contain the file name (example:/uploads/images/thumb/) */if (!defined ("__ Webroot__ ")) define (" __webroot__ ", $_server[' Document_root ']); Class IMG {protected $_img;//image source protected $_fileimg;//Loading picture source protected $_fileinfo;//Loading picture information array protected $_picinf O Load the picture with an array of wide and high information protected $_rand = ' abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNOPQRSTUVWXYZ1234567890 '; Random factor protected $_code = ""; Captcha Public $Width = 300;//picture default wide public $Height = 80;  Picture Default high Public $BackgroundColor = "000000"; Public $Font = "/PHPS/PUBLIC/FONT/ARIALNB. TTF "; Default font public $FontSize = 16; Default font size public $FontColor = "FFFFFF";  Default font Color Public $Content = "Test Word";  Public $Align = "Left"; Public $Codes = 4; Number of authentication codes public $Line = 6; Number of interfering lines public $LOADERR = "";  Error message//public function __construct () {}/** Set picture properties * @param array $Options Property arrays * @return $this return object */Public    function Style ($Options) {$this, _re_set (); foreach ($Options as $K + $V) {if (In_array ($K, Array (' ' Width ', ' Height ', ' backgroundcolor ', ' "" "Font", "FontSize ', ' fontcolor ', ' Content ', ' Align ', ' Codes ', ' line ', ' Snow ')) {if ($K = = "BackgroundColor" | | $K = = "Fontcol        or ") {if (Preg_match (" # ([a-za-z0-9]{6}) # ", $V)) $this, $K = $V;        }else{$this $K = $V;  }}} return $this;    }/** * Reset property, no external access */protected function _re_set () {$this Width = 100; $this Height = 30;    $this-backgroundcolor = "000000"; $this, Font = "/PHPS/PUBLIC/FONT/ARIALNB.    TTF ";    $this-FontSize = 16;    $this-fontcolor = "FFFFFF";    $this-Align = "Left";    $this-Codes = 4;  $this line = 6; }/** * Create an image source, add a background, create an image * @param bool $BGC Specify whether to create a background color and a rectangular block */protected function _create_img_gb ($BGC = True) {$t His-_img = Imagecreatetruecolor ($this Width, $this-Height); Create background source if ($BGC) {Preg_match ("# ([A-za-z0-9]{2}) ([A-za-z0-9]{2}) ([a-za-z0-9]{2}) #", $this-BackgroundColor, $Col Orarr); Separates color values into three groups of 16-bit binary numbers $Color = imagecolorallocate ($this-_img,hexdec ($COLORARR [1]), Hexdec ($COLORARR [2]), Hexdec ($ COLORARR[3])); Add a background color to the IMG image source Imagefilledrectangle ($this, _img,0, $this, Height, $this, width,0, $Color);    Create Image}}/** * Create random verification Code */protected function _create_code () {$Len = strlen ($this-_rand)-1; for ($i = 0; $i < $this, Codes; $i + +) {$tHis-_code. = $this _rand[mt_rand (0, $Len)]; }}/** * Writes a string to the image and does not support Chinese/protected function _write_text () {$FontWidth = Imagefontwidth ($this fontsiz e); Gets the width of a character of font size Preg_match_all ('/(.) /us ", $this, Content, $TEXTARR); Divide content by the number of statistics $FontHeight = Imagefontheight ($this-FontSize); Gets the height of the font size $X = Ceil (($this Width-($FontWidth * COUNT ($TextArr [0])))/2); Set the distance of the left margin of the x wheelbase $Y = Ceil (($this, Height + $FontHeight)/2);    Sets the distance from the top margin of the Y wheelbase Preg_match ("# ([a-za-z0-9]{2}] ([a-za-z0-9]{2}) ([a-za-z0-9]{2}) #", $this-FontColor, $COLORARR); $Color = Imagecolorallocate ($this-_img,hexdec ($COLORARR [1]), Hexdec ($COLORARR [2]), Hexdec ($COLORARR [3])); Set text color Imagettftext ($this-_img, $this-fontsize,0, $X, $Y, $Color, __webroot__. Font, $this-- tent); Write content}/** * Write verification code to image */protected function _write_code () {$_x = $this width/$this-Codes;//settings Aspect ratio for ($i = 0; $i < $this-> Codes, $i + +) {//Cycles Codes times, generates one verification code value at a time $Color = Imagecolorallocate (_img,mt_rand (0,156), Mt_rand (0,156), MT _rand (0,156)); Randomly generated verification code value color Imagettftext ($this, _img, $this, Fontsize,mt_rand ( -30,30), $_x* $i +mt_rand (1,5), $this-Heig ht/1.3, $Color, __webroot__ $this, Font, $this-_code[$i]);  Generate a verification code value}}/** * Write interference lines into images */protected function _write_line () {//Generate interference lines for ($i =0; $i < $this      Line; $i + +) {$Color = Imagecolorallocate ($this, _img,mt_rand (0,156), Mt_rand (0,156), Mt_rand (0,156)); Imageline ($this, _img,mt_rand (0, $this, width), mt_rand (0, $this, Height), Mt_rand (0, $this-width), mt_    Rand (0, $this, Height), $Color);    }}/** * Set the image type to Jpeg */protected function _img_jpeg () {header (' content-type:image/jpeg ');    Imagejpeg ($this-_img);  Imagedestroy ($this-_img);    }/** * Set the image type to Png */protected function _img_png () {header (' content-type:image/png '); ImAgepng ($this-_img);  Imagedestroy ($this-_img);    }/** * Create a JPEG string image */Public Function create_img_jpg () {$this, _CREATE_IMG_GB (True);    $this-_write_text ();  $this-_img_jpeg ();    /** * Create a Png string image */Public Function create_img_png () {$this, _CREATE_IMG_GB (True);    $this-_write_text ();  $this-_img_png ();    }/** * Create a PNG image of the CAPTCHA */Public Function create_verify () {$this, backgroundcolor = ";    for ($I = 0; $I < 3; $I + +) {$this-backgroundcolor. = Dechex (Mt_rand (20,155));    } $this _CREATE_IMG_GB (True);    $this-_create_code ();    $this-_write_line ();    $this-_write_code ();  $this-_img_png ();  /** * External obtain MD5 encrypted CAPTCHA * @return String */Public Function get_verify () {return MD5 ($this-_code); }/** * Loads an image file and obtains image related information * @param string $FilePath image relative path address * @return $this |bool successfully returned the object, otherwise false */public F Unction load_img ($FilePaTH) {$FilePath = __webroot__. $FilePath;      if (!is_file ($FilePath)) {$this, Loaderr = "Path error, file does not exist";    Return False;    } $this _picinfo = getimagesize ($FilePath);    $this-_fileinfo = PathInfo ($FilePath);      Switch ($this-_picinfo[2]) {Case 1: $this->_fileimg = Imagecreatefromgif ($FilePath);      Case 2: $this->_fileimg = Imagecreatefromjpeg ($FilePath);      Case 3: $this->_fileimg = Imagecreatefrompng ($FilePath); Default: $this-loaderr = "type error, unsupported picture type";    Return False;  } Return True; }/** * Create thumbnail * @param string $FileName saved picture name prefix * @param string $FilePath Save picture relative path * @return Mixed returns information about the generated picture    Array */Public function Create_thumb ($FileName, $FilePath) {$SavePath = __webroot__. $FilePath;    if (!file_exists ($SavePath)) {mkdir ($SavePath, 0777,true); } $FileName = $FileName. Date ("Ymdhis"). Rand (100,999). ".    $this, _fileinfo["extension";    $FilePath = $FilePath. $FileName; $Savepath = $SavePath. $FileName;    $this-_CREATE_IMG_GB (False); Imagecopyresampled ($this, _img, $this, _fileimg,0,0,0,0, $this, Width, $this, Height, $this,    Picinfo[0], $this-_picinfo[1]);      Switch ($this-_picinfo[2]) {case 1:imagegif ($this, _img, $SavePath);      Case 2:imagejpeg ($this, _img, $SavePath);    Case 3:imagepng ($this, _img, $SavePath);    } $FIleInfo [' FileName '] = $FileName;    $FIleInfo [' FilePath '] = $FilePath;  Return $FIleInfo; }}

Using the example

$IMG = new IMG (); $Options [' Width '] = +, $Options [' Height '] = +, $Options [' Content '] = "Test Create Img"; $Options [' FontColor '] = "FF0000"; $Options [' backgroundcolor '] = "aaaaaa"; $Img, Style ($Options), create_img_jpg (); if ($IMG, load_img ("/public/images/ad1.png")) {  $FileInfo = $Img, Style (Array (' Width ' =>30, ' Height ') ' =>30 '), Create_thumb ("Thumb", "/uploads/images/");  Var_dump ($FileInfo);} Else{die  ("Load image failed,". $IMG-Loaderr);}
Reprinted from: http://www.aspnetjia.com

PHP Image processing class library and demo sharing