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imagettfbbox

imagettfbbox

Give the bounding box of a text using TrueType fonts

 **imagettfbbox** float $size float $angle string $font_filename string $string array $options

This function calculates and returns the bounding box in pixels for a TrueType text.

Opmerking: > Prior to PHP 8.0.0, was an extended variant of which additionally supported the . As of PHP 8.0.0, is an alias of . imageftbbox``imagettfbbox``extrainfo``imagettfbbox``imageftbbox

sizegd.font.size

angle Angle in degrees in which will be measured. string

stringThe string to be measured.

options Same as in . imagettftext

returns an array with 8

elements representing four points making the bounding box of the text on success and false on error.

imagettfbbox

The points are relative to the regardless of the , so "upper left" means in the top left-hand corner seeing the text horizontally. textangle

Voorbeeld: example

<?php
// Create a 300x150 image
$im = imagecreatetruecolor(300, 150);
$black = imagecolorallocate($im, 0, 0, 0);
$white = imagecolorallocate($im, 255, 255, 255);

// Set the background to be white
imagefilledrectangle($im, 0, 0, 299, 299, $white);

// Path to our font file
$font = './arial.ttf';

// First we create our bounding box for the first text
$bbox = imagettfbbox(10, 45, $font, 'Powered by PHP ' . phpversion());

// This is our cordinates for X and Y
$x = $bbox[0] + (imagesx($im) / 2) - ($bbox[4] / 2) - 25;
$y = $bbox[1] + (imagesy($im) / 2) - ($bbox[5] / 2) - 5;

// Write it
imagettftext($im, 10, 45, $x, $y, $black, $font, 'Powered by PHP ' . phpversion());

// Create the next bounding box for the second text
$bbox = imagettfbbox(10, 45, $font, 'and Zend Engine ' . zend_version());

// Set the cordinates so its next to the first text
$x = $bbox[0] + (imagesx($im) / 2) - ($bbox[4] / 2) + 10;
$y = $bbox[1] + (imagesy($im) / 2) - ($bbox[5] / 2) - 5;

// Write it
imagettftext($im, 10, 45, $x, $y, $black, $font, 'and Zend Engine ' . zend_version());

// Output to browser
header('Content-Type: image/png');

imagepng($im);
?>

imagettftext``imageftbbox

Vorige ← imagetruecolortopalette Volgende imagettftext →

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