PHP | Imagick identifyFormat() Function

The Imagick::identifyFormat() function is an inbuilt function in PHP which is used to replace the embedded format characters with its appropriate image property and returns the interpreted text.

List of escape sequence: Please refer the link to see the list of escape sequence. Ref: http://www.imagemagick.org/script/escape.php

Following are the some of the important embedded formatting characters such as escape sequences for appropriate image property:

%h current image height in pixels

%i image filename (note: becomes output filename for “info:”)

%k CALCULATED: number of unique colors

%m image file format (file magic)

%n number of images in current image sequence

%w current width in pixels

%x x resolution (density)

%y y resolution (density)

%z image depth (as read in unless modified, image save depth)

%U image resolution units

%@ CALCULATED: trim bounding box (without actually trimming) etc…

Syntax:

string Imagick::identifyFormat( $embedText )

Parameters: This function accepts single parameter $embedText which holds a string containing formatting sequences.

Return Value: This function returns the image format or FALSE on failure.

Below program illustrates the Imagick::identifyFormat() function in PHP:

Program: This program uses Imagick::identifyFormat() function to find the format of given Images.

<?php

// Declare new Imagick object
$imagick = new \Imagick(
"https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-9.png");

// Store a string into variable
$embedText = "Output of 'Trim box: %@ number of unique colors: %k' is: <br/>";

// Use Imagick::identifyFormat() function to replace the embedded
// format characters with its appropriate image property
$embedText .= $imagick->identifyFormat("Trim box: %@ number of unique colors: %k");

// Display the output
echo $embedText;

?>

Output:

Output of 'Trim box: %@ number of unique colors: %k' is:
Trim box: 656x144+5+15 number of unique colors: 2955

Reference: https://www.php.net/manual/en/imagick.identifyformat.php