php-gd installed but fails to function in centos 7 (php 7.3 version)

Question

I am trying to install moodle but it shows php-gd extension is missing/should be enabled. However the gd is already installed and latest, and when I command php -v I get the following error as indicated below.

PHP Warning:  PHP Startup: Unable to load dynamic library 'gd.so' (tried: /usr/lib64/php/modules/gd.so (/lib64/libraqm.so.0: undefined symbol: hb_ft_font_set_load_flags), /usr/lib64/php/modules/gd.so.so (/usr/lib64/php/modules/gd.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
PHP 7.3.17 (cli) (built: Apr 14 2020 08:29:22) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.17, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.17, Copyright (c) 1999-2018, by Zend Technologies

I did a lot of editing but I could not find a single solution. Please help

here is the ouput for rpm -qa|grep gd and i used yum install php-gdgdm-gdm-3.8.4-27.el7.x86_64 gd-last-2.3.0-1.el7.remi.x86_64 libgdither-0.6-8.el7.x86_64 php-gd-7.3.17-1.el7.remi.x86_64 gdisk-0.8.6-4.el7.x86_64 gdbm-1.10-8.el7.x86_64 libs-3.8.4-27.el7.x86_64 gd-devel-2.0.35-26.el7.x86_64 gupnp-igd-0.2.2-3.el7.x86_64 gdb-7.6.1-51.el7.x86_64 gd-2.0.35-26.el7.x86_64 pulseaudio-gdm-hooks-3.0-22.el7.x86_64 cgdcbxd-1.0.2-5.el7.x86_64 php73-php-gd-7.3.17-1.el7.remi.x86_64 libgdata-0.13.3-4.el7.x86_64 gdk-pixbuf2-2.28.2-4.el7.x86_64 @DavidHlavati — Jeff Seven
– Jeff Seven, Commented May 6, 2020 at 15:24
if i run php -m | grep gd //I GET //// PHP Startup: Unable to load dynamic library 'gd' (tried: /usr/lib64/php/modules/gd (/usr/lib64/php/modules/gd: cannot open shared object file: No such file or directory), /usr/lib64/php/modules/gd.so (/lib64/libraqm.so.0: undefined symbol: hb_ft_font_set_load_flags)) in Unknown on line 0 — Jeff Seven
– Jeff Seven, Commented May 6, 2020 at 15:33

Eric Ross · Accepted Answer · 2020-07-31 17:33:49Z

I had the same problem:

# php --version
PHP Warning:  PHP Startup: Unable to load dynamic library 'gd' (tried: /usr/lib64/php/modules/gd (/usr/lib64/php/modules/gd: cannot open shared object file: No such file or directory), /usr/lib64/php/modules/gd.so (/lib64/libraqm.so.0: undefined symbol: hb_ft_font_set_load_flags)) in Unknown on line 0
PHP 7.2.32 (cli) (built: Jul  8 2020 07:33:50) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.2.32, Copyright (c) 1999-2018, by Zend Technologies

A quick search in google told me that hb_ft_font_set_load_flags comes from HarfBuzz (https://harfbuzz.github.io/harfbuzz-hb-ft.html).

I installed it with yum install harfbuzz, and after that the warning is gone:

php --version
PHP 7.2.32 (cli) (built: Jul  8 2020 07:33:50) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.2.32, Copyright (c) 1999-2018, by Zend Technologies

mchtech · Accepted Answer · 2020-07-22 04:44:30Z

3

Run:

yum install libraqm-devel

[root@* ~]# yum provides '*/libraqm.so*'
Repository epel is listed more than once in the configuration
libraqm-0.7.0-4.el7.x86_64 : Complex Textlayout Library
Repo        : epel
Matched from:
Filename    : /usr/lib64/libraqm.so.0.700.0
Filename    : /usr/lib64/libraqm.so.0



libraqm-devel-0.7.0-4.el7.x86_64 : Complex Textlayout Library
Repo        : epel
Matched from:
Filename    : /usr/lib64/libraqm.so


[root@* ~]# ll /usr/lib64/libraqm.so*
lrwxrwxrwx 1 root root    18 Jul 20 23:20 /usr/lib64/libraqm.so -> libraqm.so.0.700.0
lrwxrwxrwx 1 root root    18 Jul 18 19:00 /usr/lib64/libraqm.so.0 -> libraqm.so.0.700.0
-rwxr-xr-x 1 root root 19792 Jan 11  2020 /usr/lib64/libraqm.so.0.700.0

libraqm.so provided by libraqm-devel.

Install libraqm-devel will also install freetype and harfbuzz, which provide hb_ft_font_set_load_flags.

edited Jul 22, 2020 at 4:44

answered Jul 20, 2020 at 15:27

mchtech

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1 Comment

Nico Haase Over a year ago

Please add some explanation to your answer such that others can learn from it

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