install php7 runtime brackets

// PHP Tooling default configuration settings
"php": {
        "enablePhpTooling": true, //false to disable PHP features
	"executablePath": "php",//Path format: "C:\\path\\to\\php.exe" for WIN  or "/Users/someuser/bin/php" for MAC & Linux
	"memoryLimit": "4095M", //Specify a memory limit for the PHP language server process
	"validateOnType": "false" //Configuration to have diagnostics "on type" or "on save"
}
//Note: Don't forget to remove comments while using as valid JSONs can't have comments.