BO LIU liubo2055

## install_psql_php.sh
#!/bin/bash

# Install Xcode Command Line Tools first (required)
xcode-select --install

# Check PHP version `php --version`
PHP_VER=$(php -v | head -1 | awk '{ print $2 }')

# Extensions directory (default: empty string)
EXT_DIR=""
	#!/bin/bash

	# Install Xcode Command Line Tools first (required)
	xcode-select --install

	# Check PHP version `php --version`
	PHP_VER=$(php -v \| head -1 \| awk '{ print $2 }')

	# Extensions directory (default: empty string)
	EXT_DIR=""