change php version to 7.2 code example
Example 1: install php7.4 in linux server
For install all important php 7.4 extensions
apt install php7.4-common php7.4-mysql php7.4-xml php7.4-xmlrpc php7.4-curl php7.4-gd php7.4-imagick php7.4-cli php7.4-dev php7.4-imap php7.4-mbstring php7.4-opcache php7.4-soap php7.4-zip php7.4-intl -y
Example 2: latest php version
<?php
$json = file_get_contents('https://www.php.net/releases/?json');
$releases = [];
if ($json) $releases = json_decode($json, true);
$versions = array_keys($releases);
if (array_key_exists(max($versions), $releases)) {
echo $releases[max($versions)]['version'];
}