imageistruecolor

(PHP 4 >= 4.3.2, PHP 5)

imageistruecolor — Finds whether an image is a truecolor image

Description

bool imageistruecolor ( resource $image )

imageistruecolor() finds whether the image image is a truecolor image.

Parameters

image

An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

Return Values

Returns TRUE if the image is truecolor, FALSE otherwise.

Examples

Example #1 Simple detection of true color image instances using imageistruecolor()

<?php
// $im is an image instance

// Check if image is a true color image or not
if(!imageistruecolor($im))
{
    // Create a new true color image instance
    $tc = imagecreatetruecolor(imagesx($im), imagesy($im));

    imagecopy($tc, $im, 0, 0, 0, 0, imagesx($im), imagesy($im));
    imagedestroy($im);

    $im = $tc;
    $tc = NULL;
}

// Continue working with image instance
?>

Notes

Note: This function requires GD 2.0.1 or later (2.0.28 or later is recommended).

See Also