Function deInterlace has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

    public function deInterlace()
    {
        $data = $this->m_data;
        $s    = 0;
        $y    = 0;

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Avoid deeply nested control flow statements.

Open

                                while (($pixeldataoffset % 4) != 0) {
                                    // lines are padded to nearest DWORD
                                    $pixeldataoffset++;
                                }

Avoid deeply nested control flow statements.

Open

                                while (($pixeldataoffset % 4) != 0) {
                                    // lines are padded to nearest DWORD
                                    $pixeldataoffset++;
                                }

Avoid deeply nested control flow statements.

Open

                                for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col++) {
                                    $thisfile_bmp['data'][$row][$col] = (ord($BMPpixelData[$pixeldataoffset + 3]) << 24) | (ord($BMPpixelData[$pixeldataoffset + 2]) << 16) | (ord($BMPpixelData[$pixeldataoffset + 1]) << 8) | ord($BMPpixelData[$pixeldataoffset]);
                                    $pixeldataoffset                  += 4;
                                }

Avoid deeply nested control flow statements.

Open

                            for ($y = 0; $y < $this->thumbnail_height; $y++) {
                                $AlphaChannelPixel = phpthumb_functions::GetPixelColor($img_alpha_mixdown_dither, $x, $y);
                                if ($AlphaChannelPixel['red'] > 127) {
                                    imagesetpixel($this->gdimg_output, $x, $y, $TransparentColor);
                                }

Avoid deeply nested control flow statements.

Open

                            if (mb_strlen($imgdata) <= $this->maxb) {
                                imagetruecolortopalette($this->gdimg_output, true, 2 ** $i);
                                break;
                            }

Avoid deeply nested control flow statements.

Open

                            if (mb_strlen($imgdata) <= $this->maxb) {
                                break;
                            }

Avoid deeply nested control flow statements.

Open

                                while (($pixeldataoffset % 4) != 0) {
                                    // lines are padded to nearest DWORD
                                    $pixeldataoffset++;
                                }

Avoid deeply nested control flow statements.

Open

                                for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col++) {
                                    $paletteindex                     = ord($BMPpixelData[$pixeldataoffset++]);
                                    $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex];
                                }

Avoid deeply nested control flow statements.

Open

                                for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col++) {
                                    $thisfile_bmp['data'][$row][$col] = (ord($BMPpixelData[$pixeldataoffset + 2]) << 16) | (ord($BMPpixelData[$pixeldataoffset + 1]) << 8) | ord($BMPpixelData[$pixeldataoffset]);
                                    $pixeldataoffset                  += 3;
                                }

Method lettersChoice has 6 arguments (exceeds 4 allowed). Consider refactoring.

Open

    public static function lettersChoice($myObject, $activeObject, $criteria, $name, $link, $link2 = null)

Avoid deeply nested control flow statements.

Open

                                while (($pixeldataoffset % 4) != 0) {
                                    // lines are padded to nearest DWORD
                                    $pixeldataoffset++;
                                }

Avoid deeply nested control flow statements.

Open

                                while (($pixeldataoffset % 4) != 0) {
                                    // lines are padded to nearest DWORD
                                    $pixeldataoffset++;
                                }

Avoid deeply nested control flow statements.

Open

                                for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col = $col) {
                                    $paletteindexbyte = ord($BMPpixelData[$pixeldataoffset++]);
                                    for ($i = 7; $i >= 0; $i--) {
                                        $paletteindex                     = ($paletteindexbyte & (0x01 << $i)) >> $i;
                                        $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex];

Avoid deeply nested control flow statements.

Open

                                for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col = $col) {
                                    $paletteindexbyte = ord($BMPpixelData[$pixeldataoffset++]);
                                    for ($i = 1; $i >= 0; $i--) {
                                        $paletteindex                     = ($paletteindexbyte & (0x0F << (4 * $i))) >> (4 * $i);
                                        $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex];

Avoid deeply nested control flow statements.

Open

                                for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col++) {
                                    $pixelvalue      = $this->LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset, $thisfile_bmp_header_raw['bits_per_pixel'] / 8));
                                    $pixeldataoffset += $thisfile_bmp_header_raw['bits_per_pixel'] / 8;

                                    $red                              = (int)round(((($pixelvalue & $thisfile_bmp_header_raw['red_mask']) >> $redshift) / ($thisfile_bmp_header_raw['red_mask'] >> $redshift)) * 255);

Avoid deeply nested control flow statements.

Open

                            if (strlen($imgdata) <= $this->maxb) {
                                imagetruecolortopalette($this->gdimg_output, true, pow(2, $i));
                                break;
                            }

Avoid deeply nested control flow statements.

Open

                                    switch ($secondbyte) {
                                        case 0:
                                            // end of line
                                            // no need for special processing, just ignore
                                            break;

Function file_exists_ignoreopenbasedir has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

    public function file_exists_ignoreopenbasedir($filename, $cached = true)
    {
        static $open_basedirs = null;
        static $file_exists_cache = [];
        if (!$cached || !isset($file_exists_cache[$filename])) {

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Avoid deeply nested control flow statements.

Open

                                        if (preg_match('# \\-crop "([\d]+)x([\d]+)\\+0\\+0" #', $commandline, $matches)) {
                                            $commandline = str_replace(' -crop "' . $matches[1] . 'x' . $matches[2] . '+0+0" ', ' -crop ' . phpthumb_functions::escapeshellarg_replacement(($matches[1] - (2 * $width)) . 'x' . ($matches[2] - (2 * $width)) . '+0+0') . ' ', $commandline);
                                        } elseif (preg_match('# \\-' . $IMresizeParameter . ' "([0-9]+)x([0-9]+)" #', $commandline, $matches)) {
                                            $commandline = str_replace(
                                                ' -' . $IMresizeParameter . ' "' . $matches[1] . 'x' . $matches[2] . '" ',