Source code sharing for converting PHP images to ico format

The pure PHP source code for online ico Image conversion is integrated into open-source projects,

Class

  $gd_image) {                    $IcoWidths[$key]  = ImageSX($gd_image);                    $IcoHeights[$key] = ImageSY($gd_image);                    $bpp[$key]          = ImageIsTrueColor($gd_image) ? 32 : 24;                    $totalcolors[$key]  = ImageColorsTotal($gd_image);                    $icXOR[$key] = '';            for ($y = $IcoHeights[$key] - 1; $y >= 0; $y--) {                for ($x = 0; $x < $IcoWidths[$key]; $x++) {                                    $argb = $this->gpc($gd_image, $x, $y);                                    $a = round(255 * ((127 - $argb['alpha']) / 127));                                    $r = $argb['red'];                                    $g = $argb['green'];                                    $b = $argb['blue'];                    if ($bpp[$key] == 32) {                                            $icXOR[$key] .= chr($b).chr($g).chr($r).chr($a);                    } elseif ($bpp[$key] == 24) {                                            $icXOR[$key] .= chr($b).chr($g).chr($r);                    }                    if ($a < 128) {                        @$icANDmask[$key][$y] .= '1';                    } else {                        @$icANDmask[$key][$y] .= '0';                    }                }                while (strlen($icANDmask[$key][$y]) % 32) {                                    $icANDmask[$key][$y] .= '0';                }            }            $icAND[$key] = '';            foreach ($icANDmask[$key] as $y => $scanlinemaskbits) {                for ($i = 0; $i < strlen($scanlinemaskbits); $i += 8) {                                    $icAND[$key] .= chr(bindec(str_pad(substr($scanlinemaskbits, $i, 8), 8, '0', STR_PAD_LEFT)));                }            }        }        foreach ($gd_ico_array as $key => $gd_image) {                    $biSizeImage = $IcoWidths[$key] * $IcoHeights[$key] * ($bpp[$key] / 8);                    $bfh[$key]  = '';                    $bfh[$key] .= "\x28\x00\x00\x00";                    $bfh[$key] .= $this->le2s($IcoWidths[$key], 4);                    $bfh[$key] .= $this->le2s($IcoHeights[$key] * 2, 4);                    $bfh[$key] .= "\x01\x00";                    $bfh[$key] .= chr($bpp[$key])."\x00";                    $bfh[$key] .= "\x00\x00\x00\x00";                    $bfh[$key] .= $this->le2s($biSizeImage, 4);                    $bfh[$key] .= "\x00\x00\x00\x00";                    $bfh[$key] .= "\x00\x00\x00\x00";                    $bfh[$key] .= "\x00\x00\x00\x00";                    $bfh[$key] .= "\x00\x00\x00\x00";        }                $icondata  = "\x00\x00";                $icondata .= "\x01\x00";                $icondata .= $this->le2s(count($gd_ico_array), 2);                $dwImageOffset = 6 + (count($gd_ico_array) * 16);        foreach ($gd_ico_array as $key => $gd_image) {                    $icondata .= chr($IcoWidths[$key]);                    $icondata .= chr($IcoHeights[$key]);                    $icondata .= chr($totalcolors[$key]);                    $icondata .= "\x00";                    $icondata .= "\x01\x00";                    $icondata .= chr($bpp[$key])."\x00";                    $dwBytesInRes = 40 + strlen($icXOR[$key]) + strlen($icAND[$key]);                    $icondata .= $this->le2s($dwBytesInRes, 4);                    $icondata .= $this->le2s($dwImageOffset, 4);                    $dwImageOffset += strlen($bfh[$key]);                    $dwImageOffset += strlen($icXOR[$key]);                    $dwImageOffset += strlen($icAND[$key]);        }        foreach ($gd_ico_array as $key => $gd_image) {                    $icondata .= $bfh[$key];                    $icondata .= $icXOR[$key];                    $icondata .= $icAND[$key];        }        return $icondata;    }    function le2s($number, $minbytes=1) {            $intstring = '';        while ($number > 0) {                    $intstring = $intstring.chr($number & 255);                    $number >>= 8;        }        return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT);    }    function gpc(&$img, $x, $y) {        if (!is_resource($img)) {            return false;        }        return @ImageColorsForIndex($img, @ImageColorAt($img, $x, $y));    }}?>

Controller

If ($ error ['text'] = "" & isset ($ _ FILES ['upimage'] ['tmp _ name']) & $ _ FILES ['upload'] ['tmp _ name'] & is_uploaded_file ($ _ FILES ['upload'] ['tmp _ name']) {if ($ _ FILES ['upimage'] ['type']> 210000) {$ error ['text'] = "the size of the file you uploaded exceeds the limit and cannot exceed 200 KB";} else {$ fileext = array ("image/pjpeg ", "image/gif", "image/x-png", "image/png", "image/jpeg", "image/jpg"); if (! In_array ($ _ FILES ['upimage'] ['type'], $ fileext )) {$ error ['text'] = "The format of the file you uploaded is incorrect. only jpg, gif, and png files are supported ";} else {if ($ im = @ imagecreatefrompng ($ _ FILES ['upimage'] ['tmp _ name']) or $ im = @ imagecreatefromgif ($ _ FILES ['upimage'] ['tmp _ name']) or $ im = @ imagecreatefromjpeg ($ _ FILES ['upimage'] ['tmp _ name']) {$ imginfo = @ getimagesize ($ _ FILES ['upimage'] ['tmp _ name']); if (! Is_array ($ imginfo) {$ error ['text'] = "incorrect graphic format! ";}Else {switch ($ _ POST ['size']) {case 1; $ resize_im = @ imagecreatetruecolor (16, 16); $ size = 16; break; case 2; $ resize_im = @ imagecreatetruecolor (32, 32); $ size = 32; break; case 3; $ resize_im = @ imagecreatetruecolor (48, 48); $ size = 48; break; case 4; $ resize_im = @ imagecreatetruecolor (64, 64); $ size = 64; break; case 5; $ resize_im = @ imagecreatetruecolor (128,128); $ size = 128; break; defaul T; $ resize_im = @ imagecreatetruecolor (64, 64); $ size = 64; break;} imagecopyresampled ($ resize_im, $ im, 0, 0, 0, 0, $ size, $ size, $ imginfo [0], $ imginfo [1]); $ icon = new Iconv (); $ gd_image_array = array ($ resize_im ); $ icon_data = $ icon-> GDtoICOstr ($ gd_image_array); $ filename = "temp /". date ("Ymdhis "). rand (1, 1000 ). ". ico "; if (file_put_contents ($ filename, $ icon_data) {// $ output =" generated successfully! Right-click and choose save as local.
Click to download "; // echo $ filename; // data display $ icon_arr = ['class' => '', 'Time' => date ("Y-m-d H: I: s"), 'filename' => $ _ FILES ['upimage'] ['name'], 'filepath' => $ filename, 'size' => $ size] ;}} else {$ error ['text'] = "generate error please try again" ;}}} else {$ error ['text'] = "select an image! ";}

Display effect

The above is the detailed content shared by the source code for converting PHP images to ico format. For more information, see other related articles in the first PHP community!