How can one parse the statement for creating a table in SQLite to determine column flags?

To parse the statement for creating a table in SQLite to determine column flags, you can use regular expressions to extract the column name, data type, and any flags specified in the statement. By breaking down the statement into its components, you can easily identify and extract the necessary information to determine the column flags. 

// Sample SQLite create table statement
$statement = "CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT NOT NULL)";

// Define regular expressions to extract column name, data type, and flags
preg_match('/\((.*?)\)/', $statement, $matches);
$columns = explode(',', $matches[1]);

foreach ($columns as $column) {
    preg_match('/\b(\w+)\b/', $column, $columnName);
    preg_match('/\b(\w+)\b/', $column, $dataType);
    
    $flags = preg_split('/\b(\w+)\b/', $column, -1, PREG_SPLIT_NO_EMPTY);
    
    echo "Column Name: " . $columnName[0] . "\n";
    echo "Data Type: " . $dataType[0] . "\n";
    echo "Flags: " . implode(", ", $flags) . "\n";
}

Keywords

PHP SQLite table creation parsing column flags

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