PHP image upload Class (Support zoom, crop, picture thumbnail function)

Code:

/*** @author [Lee] <[<[email protected]>]>* 1, automatically verify whether the file is a form submitted by a file or a file submitted by a base64 stream * 2, verify that the picture type is legal * 3, Verify that the picture size is legal * 4, verify that the picture size is legal * 5, Support zoom function * 6, support cropping function * 7, support thumbnail function */class fileuploader{private $file;p rivate $type;p ublic $suffix = Array ();p ublic $measure = Array ();p ublic $size = Array ();p ublic $scale = Array (' Is_scale ' =>0, ' ratio ' = >1);p ublic $crop = Array (' Is_crop ' =>0, ' width ' =>0, ' height ' =>0);p ublic $thumb = Array (' Is_thumb ' =>0, ' width ' =>0, ' height ' =>0);p ublic function __construct ($file) {$t    His->file = $file; $this->gettype ();}    /* Internal method: Get Picture Type 1, multiple file 2, single file 3, Base64 stream file */private function GetType () {$file = $this->file;        if (Is_array ($file)) {//Multiple file if (Is_array ($file [' name '])) {$type = 1;        }else{//Single File $type = 2;    }}else{$type = 3; } $this->type = $type;} /* Internal method: Get the picture suffix @param path picture @return suffix suffix name: JPG */private function Getsuffix ($path) {$file = fopen ($path, "RB"); $bin = Fread ($file, 2);    Read-only 2-byte fclose ($file);    $strInfo = @unpack ("C2chars", $bin);    $typeCode = Intval ($strInfo [' chars1 ']. $strInfo [' chars2 ']);    $suffix = "Unknow";    if ($typeCode = = 255216) {$suffix = "jpg";    }elseif ($typeCode = = 7173) {$suffix = "gif";    }elseif ($typeCode = = 13780) {$suffix = "png";    }elseif ($typeCode = = 6677) {$suffix = "bmp";    }elseif ($typeCode = = 7798) {$suffix = "EXE";    }elseif ($typeCode = = 7784) {$suffix = "midi";    }elseif ($typeCode = = 8297) {$suffix = "rar";    }elseif ($typeCode = = 7368) {$suffix = "MP3";    }elseif ($typeCode = = 0) {$suffix = "mp4";    }elseif ($typeCode = = 8273) {$suffix = "wav"; } return $suffix;} /* Internal method: Save stream file @param stream file stream @param suffix suffix @param dir save folder @return Path file */private function uploadBase64 ($strea  M, $suffix, $dir) {if (empty ($stream)) return false;  if (Preg_match ('/^ data: (\s)? ( IMAGE|IMG) \ (\w+), base64,)/', $stream, $str)) {$path = $dir. MD5 (rand (100000, 999999)). ".        {$suffix} ";        if (File_put_contents ($path, Base64_decode (Str_replace ($str [1], ", $stream))) {return $path;        } else {return false;    }} else {return false;    }}/* Check whether the file type is legal @return RET true: Valid false: illegal */public function Checktype () {$file = $this->file;    $type = $this->type;    $validSuffix = $this->suffix;    $ret = true;            if ($type ==1) {//multi-file foreach ($file [' Tmp_name '] as $v) {$suffix = $this->getsuffix ($v);                if (!in_array ($suffix, $validSuffix)) {$ret = false;            Break        }}}elseif ($type ==2) {//single file $suffix = $this->getsuffix ($file [' tmp_name ']);        if (!in_array ($suffix, $validSuffix)) {$ret = false;        }}else{//base64 file $suffix = $this->getsuffix ($file);if (!in_array ($suffix, $validSuffix)) {$ret = false; }} return $ret;}    /* Verify file size is legal @return ret true: Valid false: illegal */public function checkmeasure () {$file = $this->file;    $type = $this->type;    $validMeasure = $this->measure;    $ret = true;            if ($type ==1) {//multi-file foreach ($file [' Tmp_name '] as $v) {$measure = getimagesize ($v);            $width = $measure [0];            $height = $measure [1]; if ($width < $validMeasure [' width '][0] | | $width > $validMeasure [' Width '][1]) | | ($height < $validMeasure [' height '][0] | | $height > $validMeasure [' Height '][1])                {$ret = false;            Break        }}}elseif ($type ==2) {//single file $measure = getimagesize ($file [' tmp_name ']);        $width = $measure [0];        $height = $measure [1]; if ($width < $validMeasure [' width '][0] | | $width > $validMeasure [' Width '][1]) | | ($height < $validMeasure [' height '][0] | | $height >$validMeasure [' height '][1]) {$ret = false;        }}else{//base64 file $measure = getimagesize ($file);        $width = $measure [0];        $height = $measure [1]; if ($width < $validMeasure [' width '][0] | | $width > $validMeasure [' Width '][1]) | | ($height < $validMeasure [' height '][0] | | $height > $validMeasure [' Height '][1])        {$ret = false; }} return $ret;}    /* Verify file size is legal @return ret true: Valid false: illegal */public function checksize () {$file = $this->file;    $type = $this->type;    $validSize = $this->size;    $ret = true;            if ($type ==1) {//multi-file foreach ($file [' Tmp_name '] as $v) {$size = FileSize ($v); if ($size < $validSize [' min ']*1024*1024) | | ($size > $validSize [' Max ']*1024*1024)]                {$ret = false;            Break        }}}elseif ($type ==2) {//single file $size = FileSize ($file [' tmp_name ']); if ($size < $validSize [' min ']*1024*1024) | | ($size > $validSize [' Max ']*1024*1024)} {$ret = false;        }}else{//base64 file $size = filesize ($file); if ($size < $validSize [' min ']*1024*1024) | | ($size > $validSize [' Max ']*1024*1024)]        {$ret = false; }} return $ret;}      /* Internal method: Zoom picture */private function Scale ($path, $suffix, $ratio) {list ($width, $height) = getimagesize ($path);    $new _w = $ratio * $width;    $new _h = $ratio * $height;    $new _s = Imagecreatetruecolor ($new _w, $new _h);    if (In_array ($suffix, array (' jpg ', ' jpeg '))) {$img = Imagecreatefromjpeg ($path);    }elseif ($suffix = = ' png ') {$img = Imagecreatefrompng ($path);    }elseif ($suffix = = ' gif ') {$img = Imagecreatefromgif ($path);    }else{return false;      } $ret 1 = imagecopyresized ($new _s, $img, 0, 0, 0, 0, $new _w, $new _h, $width, $height);    if (In_array ($suffix, array (' jpg ', ' jpeg '))) {$ret 2 = imagejpeg ($new _s, $path); }elseif ($suffix = = ' png ') {$ret 2 = imagepng ($new _s, $path);    }elseif ($suffix = = ' gif ') {$ret 2 = imagegif ($new _s, $path);    }else{return false;      } Imagedestroy ($new _s);    Imagedestroy ($IMG);    if ($ret 1 && $ret 2) {return $path;    }else{return false;    }}/* Internal method: Crop picture */private function crop ($path, $suffix, $cut _width, $cut _height) {$cut _x;    $cut _y;    $min;    $size = getimagesize ($path);    $width = $size [0];    $height = $size [1];    $min = min ($width, $height);    $cut _width = ($cut _width > $min) $min: $cut _width;    $cut _height = ($cut _height > $min) $min: $cut _height;    $cut _x = ($width-$cut _width)/2;    $cut _y = ($height-$cut _height)/2;    if (In_array ($suffix, array (' jpg ', ' jpeg '))) {$img = Imagecreatefromjpeg ($path);    }elseif ($suffix = = ' png ') {$img = Imagecreatefrompng ($path);    }elseif ($suffix = = ' gif ') {$img = Imagecreatefromgif ($path);    }else{return false;    } $new _s = Imagecreatetruecolor ($cut _width, $cut _height); $rEt1 = imagecopyresampled ($new _s, $img, 0, 0, $cut _x, $cut _y, $cut _width, $cut _height, $cut _width, $cut _height);    if (In_array ($suffix, array (' jpg ', ' jpeg '))) {$ret 2 = imagejpeg ($new _s, $path);    }elseif ($suffix = = ' png ') {$ret 2 = imagepng ($new _s, $path);    }elseif ($suffix = = ' gif ') {$ret 2 = imagegif ($new _s, $path);    }else{return false;    } Imagedestroy ($new _s);    Imagedestroy ($IMG);    if ($ret 1 && $ret 2) {return $path;    }else{return false;    }}/* internal methods: Generate thumbnails */private function thumb ($path, $suffix, $cut _width, $cut _height) {$cut _x;    $cut _y;    $ratio = 1;    $size = getimagesize ($path);    $width = $size [0];    $height = $size [1];    $CW;    $ch;    if ($width/$height >= $cut _width/$cut _height) {$ratio = $cut _height/$height;    }else{$ratio = $cut _width/$width;    } $path = $this->scale ($path, $suffix, $ratio, $path);    $width *= $ratio;    $height *= $ratio; $cut _x = ABS ($cut _width-$width)/2;    $cut _y = ABS ($cut _height-$height)/2;    if (In_array ($suffix, array (' jpg ', ' jpeg '))) {$img = Imagecreatefromjpeg ($path);    }elseif ($suffix = = ' png ') {$img = Imagecreatefrompng ($path);    }elseif ($suffix = = ' gif ') {$img = Imagecreatefromgif ($path);    }else{return false;    } $new _s = Imagecreatetruecolor ($cut _width, $cut _height);      $ret 1 = imagecopyresampled ($new _s, $img, 0, 0, $cut _x, $cut _y, $cut _width, $cut _height, $cut _width, $cut _height);    if (In_array ($suffix, array (' jpg ', ' jpeg '))) {$ret 2 = imagejpeg ($new _s, $path);    }elseif ($suffix = = ' png ') {$ret 2 = imagepng ($new _s, $path);    }elseif ($suffix = = ' gif ') {$ret 2 = imagegif ($new _s, $path);    }else{return false;    } Imagedestroy ($new _s);    Imagedestroy ($IMG);    if ($ret 1 && $ret 2) {return $path;    }else{return false; }}/* Save @param dir stored folder such as: './' @return RET store file path such as: './test.jpg ' */public function Save ($dir) {$file = $this->file;    $type = $this->type;    $scale = $this->scale;    $crop = $this->crop;    $thumb = $this->thumb;    $is _scale = $scale [' Is_scale '];    $is _crop = $crop [' Is_crop '];    $is _thumb = $thumb [' Is_thumb '];    $ratio = $scale [' ratio '];    $crop _width = $crop [' width '];    $crop _height = $crop [' height '];    $thumb _width = $thumb [' width '];    $thumb _height = $thumb [' height '];            if ($type ==1) {//multi-file foreach ($file [' Tmp_name '] as $k = + $v) {$suffix = $this->getsuffix ($v); $name = $dir. MD5 (rand (100000,999999)).            $suffix;            $flag = File_put_contents ($name, file_get_contents ($v));            if (! $flag) {$ret = false;                }else{if ($is _scale) {$name = $this->scale ($name, $suffix, $ratio);                if ($is _crop) {$name = $this->crop ($name, $suffix, $crop _width, $crop _height);            } if ($is _thumb) {        $name = $this->thumb ($name, $suffix, $thumb _width, $thumb _height);            } $ret [$k] = $name;        }}}elseif ($type ==2) {//single file $suffix = $this->getsuffix ($file [' tmp_name ']); $name = $dir. MD5 (rand (100000,999999)).        $suffix;        $flag = File_put_contents ($name, file_get_contents ($file [' tmp_name ']);        if (! $flag) {$ret = false;            }else{if ($is _scale) {$name = $this->scale ($name, $suffix, $ratio);            if ($is _crop) {$name = $this->crop ($name, $suffix, $crop _width, $crop _height);            if ($is _thumb) {$name = $this->thumb ($name, $suffix, $thumb _width, $thumb _height);        } $ret = $name;        }}else{//base64 file $suffix = $this->getsuffix ($file); $name = $dir. MD5 (rand (100000,999999)).        $suffix;        $flag = File_put_contents ($name, file_get_contents ($file));if (! $flag) {$ret = false;            }else{if ($is _scale) {$name = $this->scale ($name, $suffix, $ratio);            if ($is _crop) {$name = $this->crop ($name, $suffix, $crop _width, $crop _height);            if ($is _thumb) {$name = $this->thumb ($name, $suffix, $thumb _width, $thumb _height);        } $ret = $name; }} return $ret;}}

Example usage:

$file = $_FILES[‘file‘];$fileuploader = new fileuploader($file);$fileuploader->thumb = array(    ‘is_thumb‘=>1,    ‘width‘=>200,    ‘height‘=>500);$ret = $fileuploader->save(‘./‘);var_dump($ret);

PHP image upload Class (Support zoom, crop, picture thumbnail function)