The imageftbbox() function is an inbuilt function in PHP which is used to calculate the bounding box of a text using fonts via freetype2.
Syntax:
array imageftbbox( float $size, array $angle,
string $fontfile, string $text, array $extrainfo )
Parameters: This function accept five parameters as mentioned above and described below:
- $size: It specifies the font size in points.
- $angle: It specifies the angle in degrees in which text will be measured.
- $fontfile: It specifies the font filename.
- $text: It specifies the string to be measured.
- $extrainfo (Optional): It specifies the extra information.
Return Value: This function returns an array on success.
Below given programs illustrate the imageftbbox() function in PHP:
Program 1:
<?php   // Create bounding box with local font file $bbox = imageftbbox(100, 100, './Pacifico.ttf', 'neveropen');   // Print the boundbox data print("<pre>".print_r($bbox, true)."</pre>"); ?> |
Output:
Array
(
[0] => 47
[1] => -13
[2] => -91
[3] => -806
[4] => -264
[5] => -776
[6] => -124
[7] => 17
)
Program 2:
<?php   // Create an image $im = imagecreatetruecolor(800, 250);   // Set the background to be light blue imagefilledrectangle($im, 0, 0, 299, 299,        imagecolorallocate($im, 0, 0, 100));   // Create bounding box with local font file $bbox = imageftbbox(10, 0, './Pacifico.ttf',             'neveropen');   // Calculate coordinates using bounding box $x = $bbox[0] + 130; $y = $bbox[1] + 130;   // Add text imagefttext($im, 50, 0, $x, $y, imagecolorallocate($im,          0, 150, 0), './Pacifico.ttf', 'neveropen');   // Output to browser header('Content-Type: image/png'); imagepng($im); imagedestroy($im); ?> |
Output:
Reference: https://www.php.net/manual/en/function.imageftbbox.php
