Laravel监听数据库访问、打印SQL

if ( ! function_exists('sql_dump')) {
function sql_dump()
{
\DB::listen(function ($sql) {
$i = 0;
$bindings = $sql->bindings;
$rawSql = preg_replace_callback('/\?/', function ($matches) use ($bindings, &$i) {
$item = isset($bindings[$i]) ? $bindings[$i] : $matches[0];
$i++;
return gettype($item) == 'string' ? "'$item'" : $item;
}, $sql->sql);
echo $rawSql, "\n<br /><br />\n";
});
}
}

DB::connection()->enableQueryLog(); // 打开query log
sql_dump();