ubuntu/debian PHP version switcher

gistfile1.txt

#!/bin/bash
# Ensure the script is not sourced
if [[ "$(basename -- "$0")" =~ ^(bash|sh)$ ]]; then
    echo "Please run the script directly, not with 'source' or '.'"
    return 1
fi

# Obtain the directory of the current script
SCRIPT_DIR="$(cd "$(dirname "$(realpath "${BASH_SOURCE[0]}")")" && pwd -P)"
cd "$SCRIPT_DIR"

# Set color codes for better readability
BOLD="$(tput bold)"
RED="$(tput setaf 1)"
GREEN="$(tput setaf 2)"
YELLOW="$(tput setaf 3)"
BLUE="$(tput setaf 4)"
WHITE="$(tput setaf 7)"
RESET="$(tput sgr0)" # reset all attributes

# Spinner animation function
spin() {
    local spinner=('⠋' '⠙' '⠹' '⠸' '⠼' '⠴' '⠦' '⠧' '⠇' '⠏')
    local end=$((SECONDS+1))
    while [ $SECONDS -lt $end ]; do
        for i in "${spinner[@]}"; do
            echo -ne "\r$i"
            sleep 0.1
            if [ $SECONDS -ge $end ]; then
                echo -ne "\r "
                return
            fi
        done
    done
}

# Function: Add alias to .bashrc if not already added
add_bashrc_alias() {
    local ALIAS_NAME="chphp"
    local MARKER="# Added by PHP switch script"
    if ! grep -q "$MARKER" "$HOME/.bashrc"; then
        local DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
        local SCRIPT_PATH="${DIR}/$(basename ${BASH_SOURCE[0]})"
        {
            echo "$MARKER"
            echo "alias ${ALIAS_NAME}='${SCRIPT_PATH}'"
            echo "$MARKER End"
        } >> "$HOME/.bashrc"
        echo "${GREEN}${BOLD}Alias '${ALIAS_NAME}' has been added to .bashrc.${RESET} You may need to restart your terminal or run 'source ~/.bashrc'."
    else
        echo "Alias '${ALIAS_NAME}' is already added to .bashrc."
    fi
}

# Adding alias to .bashrc
add_bashrc_alias

# Source .bashrc to refresh the terminal session
source "$HOME/.bashrc"

# Fetch available PHP versions
php_versions=$(for x in /etc/php/*/; do basename "$x"; done)
php_versions_array=($php_versions)
array_length=${#php_versions_array[@]}

# Get current PHP version
current_php_version_command=$(php -v)
current_php_version=${current_php_version_command:4:3}

# Display header
clear
echo "${BLUE}${BOLD}"
echo "╔═════════════════════════════════════════════════╗"
echo "║            Welcome to the PHP Switcher          ║"
echo "╚═════════════════════════════════════════════════╝"
echo "${RESET}"

# Display list of available PHP versions
echo "${YELLOW}Select PHP Version from the list${RESET}"
echo "${YELLOW}════════════════════════════════════════${RESET}"
for ((i = 0; i < array_length; i++)); do
    index=$((i + 1))
    echo "${BOLD}${index}. php${php_versions_array[$i]}${RESET}"
done
echo "${YELLOW}════════════════════════════════════════${RESET}"


# Prompt user to select PHP version
pattern="^[0-9]+$"
selected_index=""
while [[ ! $selected_index =~ $pattern || -z ${php_versions_array[selected_index - 1]} ]]; do
    echo "${YELLOW}Please enter a valid input${RESET}"
    read selected_index
done

# Spinner while switching PHP version
spin

# Switch to the selected PHP version
new_php_version=${php_versions_array[$selected_index - 1]}

# Display section header
echo "${BLUE}${BOLD}Switching to PHP${new_php_version}...${RESET}"

# Execute PHP version switch commands
sudo a2dismod php$current_php_version &> /dev/null
sudo a2enmod php$new_php_version &> /dev/null
sudo systemctl restart apache2 &> /dev/null
sudo update-alternatives --set php /usr/bin/php$new_php_version &> /dev/null
sudo update-alternatives --set phar /usr/bin/phar$new_php_version &> /dev/null
sudo update-alternatives --set phar.phar /usr/bin/phar.phar$new_php_version &> /dev/null
sudo update-alternatives --set phpize /usr/bin/phpize$new_php_version &> /dev/null
sudo update-alternatives --set php-config /usr/bin/php-config$new_php_version &> /dev/null

# Confirm the new PHP version
echo "${GREEN}${BOLD}"
echo "╔════════════════════════════╗"
echo "║ PHP has been switched to   ║"
echo "║ ${WHITE}php${new_php_version}${GREEN}                     ║"
echo "╚════════════════════════════╝"
echo "${RESET}"

php -v