PDF_stringwidth

(PHP 4, PECL pdflib >= 1.0.0)

PDF_stringwidth — Return width of text

说明

PDF_stringwidth ( resource $p , string $text , int $font , float $fontsize ) : float

Returns the width of text in an arbitrary font.

add a note

User Contributed Notes 3 notes

down

rross at mNoOoSnPsAoMfvega dot com ¶

13 years ago


One thing I came across, and hope is useful to someone, is the following.
If you're looking to use the pdf_stringwidth() function, and expecting it to give you the proper results when trying to center or position the text, try to avoid using this line in your code:

<?
    pdf_set_parameter($pdf, "textformat", "utf8");
?>

I discovered (after much hair-pulling of what remains of my hair) that this line of code increases the amount of space between characters by roughly 100%.  Removing this line of code made the text on my generated PDF's significantly tighter and more appealing.

down

smilingrasta FROM gmx dot net ¶

13 years ago


With upgrading to PHP5, i had to switch to a newer version of pdflib (v6), where some functions slightly differ from the old version(v5).

The new parameters for this function are:
<?php float PDF_stringwidth(PDF *p, const char *text, int font, float size); ?>

pdf_stringwidth() does only take 2 parameters in the old version.
Now 5 parameters are required. As they aren't listed here, i thought i could do that :>

<?php
# first, we have to find the font, we are using
$fontID = pdf_findfont($pdf, 'Courier', 'host', 0);
# then we can call pdf_stringwidth                                                  
$width = pdf_stringwidth($pdf,$string, $fontID, $fontsize));
?>

Maybe that helps someone out.

down

-1

farzal at hotmail dot com ¶

17 years ago


with font COURIER and fontsize of 12, you can print 10 CPI (Characters per inch) or 1 character every 7.2 points.



This means, on an A4 page of size (595,842), with a printable area of (451,662) after leaving 1" blank on each side, one can print 451/7.2 ~= 62 characters.



If one is building tables after quering databases, this is a way to figure out if you can print all your columns in a page, or if you need to use landscape, or if you need to reduce the font size.

add a note

官方地址：https://www.php.net/manual/en/function.pdf-stringwidth.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络 JAVA NoSQL 数据库面试 C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet ADORecordSet对象 adodb手册 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 opcache预加载 Composer的Packagist资源 mysql面试题 [鸟哥]PHP FFI详解 - 一种全新的PHP扩展方式 PHP7添加redis扩展 adodb连接mysql多个数据库的问题 PHP获取指定函数定义在哪个文件中及行号 PHP mkdir()写出来的权限与mode值不符合 laravel框架查看sql语句方式 ADOConnection 公用函数

略微加速

PHP官方手册 - 互联网笔记

PDF_stringwidth

说明

User Contributed Notes 3 notes