The Imagick::setImageIndex() function is an inbuilt function in PHP which is used to set the iterator position.
Syntax:
bool Imagick::setImageIndex( int $index )
Parameters: This function accepts a single parameter $index which holds the index.
Return Value: This function returns TRUE on success.
Exceptions: This function throws ImagickException on error.
Below given programs illustrate the Imagick::setImageIndex() function in PHP:
Program 1:
<?php // Create a new imagick object $imagick = new Imagick(
// Add two more images in the same imagick object $imagick ->addImage( new Imagick(
$imagick ->addImage( new Imagick(
// Currently Cursor is at 2 // Set the Index to 0 $imagick ->setImageIndex(0);
// Get the Index $index = $imagick ->getImageIndex();
echo $index ;
?> |
Output:
0
Program 2:
<?php // Create a new imagick object $imagick = new Imagick(
// Add two more images in the same imagick object $imagick ->addImage( new Imagick(
// Currently Cursor is at 1 // Set the Index to 0 $imagick ->setImageIndex(0);
// getImageBlob() should show last added image but // cursor is set to 0 thus it shows first image header( "Content-Type: image/png" );
echo $imagick ->getImageBlob();
?> |
Output:
Reference: https://www.php.net/manual/en/imagick.setimageindex.php