| Public Member Functions | 
|  | user_function_exists ($functionname) | 
|  | builtin_function_exists ($functionname) | 
|  | version_compare_replacement_sub ($version1, $version2, $operator='') | 
|  | version_compare_replacement ($version1, $version2, $operator='') | 
|  | phpinfo_array () | 
|  | exif_info () | 
|  | ImageTypeToMIMEtype ($imagetype) | 
|  | HexCharDisplay ($string) | 
|  | IsHexColor ($HexColorString) | 
|  | ImageColorAllocateAlphaSafe (&$gdimg_hexcolorallocate, $R, $G, $B, $alpha=false) | 
|  | ImageHexColorAllocate (&$gdimg_hexcolorallocate, $HexColorString, $dieOnInvalid=false, $alpha=false) | 
|  | HexColorXOR ($hexcolor) | 
|  | GetPixelColor (&$img, $x, $y) | 
|  | GrayscaleValue ($r, $g, $b) | 
|  | GrayscalePixel ($OriginalPixel) | 
|  | GrayscalePixelRGB ($rgb) | 
|  | ImageCopyResampleBicubic ($dst_img, $src_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) | 
|  | ImageCreateFunction ($x_size, $y_size) | 
|  | ImageCopyRespectAlpha (&$dst_im, &$src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $pct=100) | 
|  | ProportionalResize ($old_width, $old_height, $new_width=false, $new_height=false) | 
|  | FunctionIsDisabled ($function) | 
|  | SafeExec ($command) | 
|  | ApacheLookupURIarray ($filename) | 
|  | gd_is_bundled () | 
|  | gd_version ($fullstring=false) | 
|  | filesize_remote ($remotefile, $timeout=10) | 
|  | filedate_remote ($remotefile, $timeout=10) | 
|  | md5_file_safe ($filename) | 
|  | nonempty_min () | 
|  | LittleEndian2String ($number, $minbytes=1) | 
|  | OneOfThese () | 
|  | CaseInsensitiveInArray ($needle, $haystack) | 
|  | URLreadFsock ($host, $file, &$errstr, $successonly=true, $port=80, $timeout=10) | 
|  | CleanUpURLencoding ($url, $queryseperator='&') | 
|  | SafeURLread ($url, &$error, $timeout=10, $followredirects=true) | 
|  | EnsureDirectoryExists ($dirname) | 
|  | GetAllFilesInSubfolders ($dirname) | 
|  | SanitizeFilename ($filename) |