To install imagemagick with PHP imagick extension on Linux CentOS you must follow these steps:
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yum install ImageMagick.i386
yum install ImageMagick-devel.i386
pecl install imagick
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At the end of the installation, create an inclusion file for imagick.so module and restart apache:
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echo “extension=imagick.so” > /etc/php.d/imagick.ini
/etc/init.d/httpd restart
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Test the correct loading of the imagick module with:
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php -m | grep imagick
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linuxfundas 