PHP | ImagickPixelIterator setIteratorLastRow() Function

Last Updated : 14 Jan, 2020
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The ImagickPixelIterator::setIteratorLastRow() function is an inbuilt function in PHP which is used to set the pixel iterator to the last pixel row. Syntax: 
bool ImagickPixelIterator::setIteratorLastRow( void )
Parameters: This function doesn’t accepts any parameters. Return Value: This function returns TRUE on success. Below programs illustrate the ImagickPixelIterator::setIteratorLastRow() function in PHP: Program 1: php 
<?php

// Create a new imagick object
$imagick = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-13.png');
   
// Get the pixel iterator
$pixelIterator = $imagick->getPixelIterator();

// Get the current iterator row
echo "Current row is " . $pixelIterator->getIteratorRow();
  
// Set the iterator to last row
$pixelIterator->setIteratorLastRow();
  
// Get the current iterator row
echo "<br>Current row is " . $pixelIterator->getIteratorRow();
?>
Output: 
Current row is 0
Current row is 183
Program 2: php 
<?php

// Create a new imagick object
$imagick = new Imagick();

// Create a image on imagick object
$imagick->newImage(800, 250, 'black');

// Get the pixel iterator
$pixelIterator = $imagick->getPixelIterator();

// Set the iterator to last row
$pixelIterator->setIteratorLastRow();

$row = $pixelIterator->getIteratorRow() + 1;
echo "<br>Total number of rows in image is " . $row;
?>
Output: 
Total number of rows in image is 250
Reference: https://www.php.net/manual/en/imagickpixeliterator.setiteratorlastrow.php

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