PHP Image processing class library and demo sharing _php tutorial

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

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/** * 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__ to * Function: Specify text content create picture (not Chinese), create captcha picture, create thumbnail, other features to be continued Method * Style (array $Options) to set the picture style, reset to default style before each setting * Create_img_png () creates a Png image, the related property is specified by style * CREATE_IMG_JPEG () creates a Jpeg image, the related property is specified by the style * Create_verify () Create CAPTCHA image, related properties specified by style * Get_verify () Gets the value of the captcha created, MD5 encryption * LOAD_IMG (string $FilePath) load image, create image source for other method call source, FilePath as image relative path * CREATE_THUMB (String $FileName, String $FilePath) creates a thumbnail of an image loaded by load_img (), FileName is the saved image prefix, FilePath is the relative path of the saved image. File name not included (example:/uploads/images/thumb/) */ if (!defined ("__webroot__")) define ("__webroot__", $_server[' Document_root ']); Class IMG { protected $_img; Picture Source protected $_fileimg; The loaded picture source protected $_fileinfo; An array of information about the loaded picture protected $_picinfo; An array of wide and high information about the loaded picture protected $_rand = ' abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNOPQRSTUVWXYZ1234567890 '; Random factor protected $_code = "; Verification Code Public $Width = 300;//picture default width Public $Height = 80; Image Default Height 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 verification codes Public $Line = 6; Number of interfering lines Public $LOADERR = '; Error message Public Function __construct () {} /** Setting picture Properties * @param array $Options Property * @return $this return objects */ Public Function Style ($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 = = "FontColor") { if (Preg_match ("# ([a-za-z0-9]{6}) #", $V)) $this, $K = $V; }else{ $this $K = $V; } } } return $this; } /** * Reset Properties, no external access available */ 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) { $this-_img = Imagecreatetruecolor ($this Width, $this, Height); Create a background source if ($BGC) { Preg_match ("# ([a-za-z0-9]{2}] ([a-za-z0-9]{2}) ([a-za-z0-9]{2}) #", $this-BackgroundColor, $COLORARR); Separates color values into three groups of 16-bit binary numbers $Color = Imagecolorallocate ($this-_img,hexdec ($COLORARR [1]), Hexdec ($COLORARR [2]), Hexdec ($COLORARR [3])); Add a background color to an IMG image source Imagefilledrectangle ($this, _img,0, $this, $this, width,0, $Color); Create an image } } /** * Create random verification code */ protected function _create_code () { $Len = strlen ($this-_rand)-1; for ($i = 0; $i < $this, Codes; $i + +) { _code $this, $this---_rand[mt_rand (0, $Len)]; } } /** * Write a string to the image, not currently supported in Chinese */ protected function _write_text () { $FontWidth = Imagefontwidth ($this-FontSize); Gets the width of a character of the font size Preg_match_all ('/(.) /us ', $this, Content, $TEXTARR); Divide the content by the number of statistics in an array $FontHeight = Imagefontheight ($this-FontSize); Gets the height of the font size $X = Ceil (($this Width-($FontWidth * COUNT ($TextArr [0]))/2); Set the distance from the left margin of the X wheelbase $Y = Ceil ($this, Height + $FontHeight)/2); Set the distance of 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-and Content); Write content } /** * Write the verification code to the image */ protected function _write_code () { $_x = Codes, width/$this, $this Setting the aspect ratio for ($i = 0; $i < $this, Codes; $i + +) {//Loop Codes times, generate one verification code value at a time $Color = Imagecolorallocate ($this, _img,mt_rand (0,156), Mt_rand (0,156), Mt_rand (0,156)); Randomly generate the color of the CAPTCHA value Imagettftext ($this, _img, $this, Fontsize,mt_rand ( -30,30), $_x* $i +mt_rand (1,5), $this-height/1.3, $Color , __webroot__. $this, Font, $this-_code[$i]); Generate a verification code value } } /** * Write interference lines to the image */ protected function _write_line () {//Generate interfering 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), $Color); } } /** * Set Image type to JPEG */ protected function _img_jpeg () { Header (' Content-type:image/jpeg '); Imagejpeg ($this-_img); Imagedestroy ($this-_img); } /** * Set Image type to PNG */ protected function _img_png () { Header (' content-type:image/png '); Imagepng ($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 verification code */ 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 (); $this-_img_png (); } /** * External access to MD5 encrypted verification code * @return String */ Public Function get_verify () { Return MD5 ($this-_code); } /** * Load an image file and get information about the image * @param string $FilePath image relative path address * @return $this |bool successfully returned the object, otherwise it will return false */ Public Function load_img ($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 image * @param string $FileName The picture name prefix saved * @param string $FilePath to save the relative path of the picture * @return Mixed returns an array of information about the resulting picture */ Public Function Create_thumb ($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

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$IMG = new IMG (); $Options [' Width '] = 300; $Options [' Height '] = 100; $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); }

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