The imagecolorresolve() function gets the index of the specified color or its closest possible alternative.Syntaximagecolorresolve (img , red , green , blue )Parametersimg: Image created with imagecreatetruecolor() function.red: The value of red component.green: The value of green component.blue: The value of blue component.ReturnThe imagecolorresolve() function returns the color index.ExampleThe following ... Read More

The imagecolorresolvealpha() function is used to get the index of the specified color with alpha.Syntaximagecolorresolvealpha (img , red , green , blue , alpha )Parametersimg: Creates an image with imagecreatetruecolor().red: The red componentgreen: The green componentblue: The blue componentalpha: Value between 0 and 127. 0 indicates completely opaque while 127 ... Read More

The imagecopy() function is used to copy part of an image.Syntaximagecopy( dst_img, src_img, dst_x, dst_y, src_x, src_y, src_w, src_h)Parametersdst_im Set destination image link resource.src_im Set source image link resource.dst_x Set x-coordinate of destination point.dst_y Set y-coordinate of destination point.src_x Set x-coordinate of source point.src_y Set y-coordinate of source point.src_w Set ... Read More

The imagearc() function is used to draw an arc.Syntaximagearc( $img, $cx, $cy, $width, $height, $start, $end, $color )Parameters$img: Creates an image with imagecreatetruecolor().$cx: x-coordinate of the center.$cy: y-coordinate of the center.$width: The width of arc.$height: The height of arc.$start: The arc start angle, in degrees.$end: The arc end angle in ... Read More

The imagecolorexact() function gets the index of the specified color.Syntaximagecolorexact ( $img, $red, $green, $blue )Parametersimg: Image resource created with imagecreatetruecolor().red: Red color componentgreen: Green color componentblue: Blue color componentReturnThe imagecolorexact() function returns the index of the specified color in the palette, or -1 if the color does not exist.ExampleThe ... Read More

The imagepolygon() function is used to draw a polygon.Syntaxbool imagepolygon( $img, $points, $num_points, $color)Parameters$img: Create a blank image with imagecreatetruecolor() function.$points: An array with vertices of polygon.$num_points: Total number of vertices in a polygon.$color: A color identifier created with imagecolorallocate() function.ReturnThe imagepolygon() function returns TRUE on success or FALSE on ... Read More

The imagecolorat() function gets the index of the color of the pixel.Syntaximagecolorat( $img, $x, $y )Parametersimg: Create an image with imagecreatetruecolor() function.x: The x-coordinate of the point.y: The y-coordinate of the point.ReturnThe imagecolorat() function returns the color index or FALSE on failure.ExampleThe following is an example: Live DemoOutputThe following is the ... Read More

The imagefilledrectangle() function draws a filled rectangle.Syntaximagefilledrectangle( $img, $x1, $y1, $x2, $y2, $color )Parametersimage Create a blank image with imagecreatetruecolor().x1x-coordinate for point 1.y1 y-coordinate for point 1.x2 x-coordinate for point 2.y2 y-coordinate for point 2.color The fill color.ReturnThe imagefilledrectangle() function returns TRUE on success or FALSE on failure.ExampleThe following is an example:OutputThe following is the ... Read More

The uniqid() function generates a unique ID based on the current time in microseconds.Syntaxuniqid(prefix, more_entropy)Parametersprefix − The prefix to the unique ID.more_entropy − The more entropy at the end of the return value.ReturnThe uniqid() function returns unique identifiers as string.Example Live DemoOutputThe following is the output.5bfd5bd045faaRead More

The show_source() function outputs a file with the PHP syntax highlighted.Syntaxshow_source(file, return)Parametersfile − The file name to display.return − If this parameter is set to true, this function will return the highlighted code as a string, instead of printing it out. Default is false.ReturnThe show_source() function returns the highlighted code ... Read More