Call to undefined function simplexml_load_file()
I have php 7.0 running on my ubuntu server.
php -m command says:
[PHP Modules] calendar Core ctype curl date dom exif fileinfo filter ftp gd gettext hash iconv intl json libxml mbstring mcrypt mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql Phar posix readline Reflection session shmop SimpleXML sockets SPL standard sysvmsg sysvsem sysvshm tokenizer wddx xml xmlreader xmlwriter xsl Zend OPcache zip zlib
But still when I run my website, its log says "PHP Fatal error: Call to undefined function simplexml_load_file()"
Answer
I had the same issue. I fixed it by installing php7.2-xml:
$ sudo apt-get install php7.2-xml
$ sudo systemctl reload apache2
After that, SimpleXML got listed by php -m:
$ php -m | grep -i simple
SimpleXML