The Gmagick::queryfontmetrics() function is an inbuilt function in PHP which returns an array that represents the font metrics containing the characterWidth, characterHeight, ascender, descender, textWidth, textHeight and maximumHorizontalAdvance.
Syntax:
Gmagick Gmagick::queryfontmetrics( GmagickDraw $draw, string $text )
Parameters: This function accepts two parameters as mentioned above and described below:
- $draw: It specifies the GmagickDraw object.
- $text: It specifies the text.
Return Value: This function returns array containing metrics on success.
Exceptions: This function throws GmagickException on error.
Below given programs illustrate the Gmagick::queryfontmetrics() function in PHP:
Used Image:
Program 1 (See the default font metrics):
<?php // Create a new Gmagick object $gmagick = new Gmagick( 'geeksforgeeks.png' );
// Create a GmagickDraw object $draw = new GmagickDraw();
// Get the metrics $fontMetrics = $gmagick ->queryfontmetrics( $draw , 'Hello' );
print ( "<pre>" . print_r( $fontMetrics , true) . "</pre>" );
?> |
Output:
Array ( [characterWidth] => 12 [characterHeight] => 12 [ascender] => 12 [descender] => -4 [textWidth] => 29 [textHeight] => 15 [maximumHorizontalAdvance] => 13 )
Program 2 (See the local font file metrics):
<?php // Create a new Gmagick object $gmagick = new Gmagick( 'geeksforgeeks.png' );
// Create a GmagickDraw object $draw = new GmagickDraw();
// Use a local font file $draw ->setfont( 'Pacifico.ttf' );
// Get the metrics $fontMetrics = $gmagick ->queryfontmetrics( $draw , 'Hello' );
print ( "<pre>" . print_r( $fontMetrics , true) . "</pre>" );
?> |
Output:
Array ( [characterWidth] => 12 [characterHeight] => 12 [ascender] => 17 [descender] => -6 [textWidth] => 28 [textHeight] => 22 [maximumHorizontalAdvance] => 19 )
Reference: https://www.php.net/manual/en/gmagick.queryfontmetrics.php