The imagettfbbox() function is an inbuilt function in PHP that is used to calculate the bounding box in pixels for a TrueType text.
Syntax:
array imagettfbbox( float $size, float $angle,
string $fontfile, string $text)
Parameters: This function accepts four 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.
- $text: It specifies the string to be measured.
Return Value: This function returns an array on success.
Below examples illustrate the imagettfbbox() function in PHP:
Example 1:
php
<?php// Create bounding box with local font file$bbox = imagettfbbox(100, 100, './Pacifico.ttf', 'neveropen');// Print the boundbox dataprint("<pre>".print_r($bbox, true)."</pre>");?> |
Output:
Array
(
[0] => 47
[1] => -13
[2] => -91
[3] => -806
[4] => -264
[5] => -776
[6] => -124
[7] => 17
)
Example 2:
php
<?php// Create a image$im = imagecreatetruecolor(800, 250);// Set the background to be light blueimagefilledrectangle($im, 0, 0, 800, 299, imagecolorallocate($im, 255, 0, 100));// Create bounding box with local font file$bbox = imagettfbbox(10, 0, './Pacifico.ttf', 'neveropen');// Calculate coordinates using bounding box$x = $bbox[0] + 130;$y = $bbox[1] + 130;// Add textimagettftext($im, 50, 0, $x, $y, imagecolorallocate($im, 0, 150, 0), './Pacifico.ttf', 'neveropen');// Output to browserheader('Content-Type: image/png');imagepng($im);imagedestroy($im);?> |
Output:
Reference: https://www.php.net/manual/en/function.imagettfbbox.php
