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Updated on 2025-03-10

PHP method to obtain a piece of text to display the width and height of the dot matrix

PHP method to obtain a piece of text to display the width and height of the dot matrix

Updated: March 12, 2015 15:30:44 Author: Jianke
This article mainly introduces the method of PHP to obtain a piece of text to display the width and height of dot matrix, which involves the usage of imagettfbbox function and the skills of php to operate ttf text. It has certain reference value. Friends who need it can refer to it.

This article describes how PHP obtains a piece of text to display the width and height of the dot matrix. Share it for your reference. The details are as follows:

define("F_SIZE", 8);
define("F_FONT", "");
function get_bbox($text){
  return imagettfbbox(F_SIZE, 0, F_FONT, $text);
}
function text_height ($text) {
  $box = get_bbox($text);
  $height = $box[3] - $box[5];
  return $height;
}
function text_width ($text) {
  $box = get_bbox($text);
  $width = $box[4] - $box[6];
  return $width;
}

I hope this article will be helpful to everyone's PHP programming.

  • PHP
  • Get
  • text
  • lattice

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