PHP Generate share Picture instance

Recently work needs to generate share pictures, initially with JS Html2canvas plug-in various problems, and then simply PHP PG Library in the background to generate pictures, very happy to solve the various problems, we want to achieve the effect such as:

Assume that the resource folder used in the code is under the current Code_png directory:

/** * Share image generation * @param $gData product data, array * @param $codeName QR code image * @param $fileName string to save the file name, default NULL to enter the image directly */function CR    Eatesharepng ($gData, $codeName, $fileName = ") {//create canvas $im = Imagecreatetruecolor (618, 1000);    Fill canvas background Color $color = imagecolorallocate ($im, 255, 255, 255);    Imagefill ($im, 0, 0, $color);    Font file $font _file = "Code_png/msyh.ttf";    $font _file_bold = "Code_png/msyh_bold.ttf";    Sets the color of the font $font _color_1 = imagecolorallocate ($im, 140, 140, 140);    $font _color_2 = imagecolorallocate ($im, 28, 28, 28);    $font _color_3 = imagecolorallocate ($im, 129, 129, 129);    $font _color_red = imagecolorallocate ($im, 217, 45, 32);    $fang _bg_color = imagecolorallocate ($im, 254, 216, 217);    Logo list ($l _w, $l _h) = getimagesize (' code_png/logo100_100.png ');    $LOGOIMG = @imagecreatefrompng (' code_png/logo100_100.png ');    Imagecopyresized ($im, $LOGOIMG, 274, 0, 0, _w, $l, $l _h); Warm hints Imagettftext ($im, 14,0, $font, $font _color_1, _fIle, ' warm hint: like long press image identification QR code can go to buy ');    Product Picture List ($g _w, $g _h) = getimagesize ($gData [' pic ']);    $GOODIMG = Createimagefromfile ($gData [' pic ']);    Imagecopyresized ($im, $GOODIMG, 0, 185, 0, 0, 618, 618, $g _w, $g _h);    QR code list ($code _w, $code _h) = getimagesize ($codeName);    $CODEIMG = Createimagefromfile ($codeName);    Imagecopyresized ($im, $CODEIMG, 820, _w, 0, 0, $code, $code _h);    Product Description $theTitle = cn_row_substr ($gData [' title '],2,19);    Imagettftext ($im, 14,0, 8, 845, $font _color_2, $font _file, $theTitle [1]);    Imagettftext ($im, 14,0, 8, 875, $font _color_2, $font _file, $theTitle [2]);    Imagettftext ($im, 14,0, 8, 935, $font _color_2, $font _file, "coupon ￥");    Imagettftext ($im, 28,0, 935, $font _color_red, $font _file_bold, $gData ["Price"]);    Imagettftext ($im, 14,0, 8,970, $font _color_3, $font _file, "pay ￥". $gData ["Original_price"]);        Coupon if ($gData [' Coupon_price ']) {imagerectangle ($im, 950, 975, $font _color_3); ImagefilledrectAngle ($im, 126, 951, 159, 974, $fang _bg_color);        Imagettftext ($im, 14,0, 135,970, $font _color_3, $font _file, "coupons");        $coupon _price = Strval ($gData [' coupon_price ']);        Imagerectangle ($im, 950, 198 + (strlen ($coupon _price) *), 975, $font _color_3); Imagettftext ($im, 14,0, 170,970, $font _color_3, $font _file, $coupon _price. "    Yuan ");    }//Output picture if ($fileName) {imagepng ($im, $fileName);        }else{Header ("Content-type:image/png");    Imagepng ($im);    }//Free space Imagedestroy ($IM);    Imagedestroy ($GOODIMG); Imagedestroy ($CODEIMG);} /** * Create image resource from picture file * @param $file picture file, support URL * @return Bool|resource successfully returned picture image resource, failed to return false */function CREATEIMAGEFR Omfile ($file) {if (Preg_match ('/http (s)?: \    /\//', $file)) {$fileSuffix = Getnetworkimgtype ($file);    }else{$fileSuffix = PathInfo ($file, pathinfo_extension);    } if (! $fileSuffix) return false; Switch ($fileSuffix) {case ' jpeg ': $theImage =@imagecreatefromjpeg ($file);        Break            Case ' jpg ': $theImage = @imagecreatefromjpeg ($file);        Break            Case ' png ': $theImage = @imagecreatefrompng ($file);        Break            Case ' gif ': $theImage = @imagecreatefromgif ($file);        Break            Default: $theImage = @imagecreatefromstring (file_get_contents ($file));    Break } return $theImage;} /** * Get network Picture type * @param $url network image URL, support without suffix name URL * @return bool */function getnetworkimgtype ($url) {$ch = Curl_init (); Initialize Curl curl_setopt ($ch, Curlopt_url, $url);    Set the URL to get curl_setopt ($ch, curlopt_nobody, 1);    curl_setopt ($ch, Curlopt_connecttimeout, 3);//Set timeout curl_setopt ($ch, Curlopt_timeout, 3); curl_setopt ($ch, Curlopt_ssl_verifypeer, false); Support HTTPS curl_exec ($ch),//Perform curl session $http _code = Curl_getinfo ($ch),//Get Curl Connection resource handle information curl_close ($ch);//close Resource connection I F ($http _code[' http_code ' = =) {$theImgType = expLode ('/', $http _code[' Content_Type ');        if ($theImgType [0] = = ' image ') {return $theImgType [1];        }else{return false;    }}else{return false;  }}/** * Branch Intercept String * @param $str the string to intercept, UTF-8 * @param int $row The number of rows intercepted * @param int $number The length of words intercepted per line, Chinese * @param bool $suffix the last line to add ' ... ' suffix * @return array returns an array of $row elements, subscript 1 to $row */function cn_row_substr ($str, $row = 1, $number = ten, $suf    Fix = True) {$result = array ();    for ($r =1; $r <= $row; $r + +) {$result [$r] = ';    } $str = Trim ($STR);    if (! $str) return $result;    $theStrlen = strlen ($STR);    Actual byte length per line $oneRowNum = $number * 3; for ($r =1; $r <= $row; $r + +) {if ($r = = $row and $theStrlen > $r * $oneRowNum and $suffix) {$result [$r] = Mg_cn_substr ($str, $oneRowNum-6, ($R-1) * $oneRowNum). '        ...';        }else{$result [$r] = Mg_cn_substr ($str, $oneRowNum, ($r-1) * $oneRowNum);    } if ($theStrlen < $r * $oneRowNum) break; } RETurn $result;} /** * intercept utf-8 strings by byte * Recognize Chinese full-width symbols, full-width Chinese 3 bytes, half-width English 1 bytes * @param $str The string to be truncated * @param $len intercept length [bytes] * @param int $start intercept    Start position, default 0 * @return string */function mg_cn_substr ($str, $len, $start = 0) {$q _str = '; $q _strlen = ($start + $len) >strlen ($STR)?    Strlen ($STR): ($start + $len); If start is not the starting position, if the starting position is garbled, get the new start if ($start and Json_encode (substr ($str, $start, 1)) = = = False) {for ($a =0) in the UTF-8 encoding.            , $a <3; $a + +) {$new _start = $start + $a;            $m _str = substr ($str, $new _start,3);                if (Json_encode ($m _str)!== false) {$start = $new _start;            Break         }}}//Cut content for ($i = $start; $i < $q _strlen; $i + +) {//ord () function gets the ASCII code for the first character of substr (), or Chinese characters if greater than 0xa0            if (Ord (substr ($str, $i, 1)) >0xa0) {$q _str. = substr ($str, $i, 3);        $i +=2;        }else{$q _str. = substr ($str, $i, 1); }} return $q _str;} How to use-------------------------------------------------//Data format, if no coupon Coupon_price value is 0. $gData = [' pic ' = ' code_png/nv_img.jpg ', ' title ' and ' Chic '-han version frock down cotton dress female winter midi 2017 new style cotton-padded wool collar waist-coat jacket ', ' price ' = 19 .8, ' Original_price ' + 119.8, ' coupon_price ' = 100];//Direct output createsharepng ($gData, ' code_png/php_code.jpg ');//Loss Out to the picture createsharepng ($gData, ' code_png/php_code.jpg ', ' share.png ');