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PHP function to import a CSV into an SQLite database. Creates a table if needed. Uses PDO.
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<?php | |
function import_csv_to_sqlite(&$pdo, $csv_path, $options = array()) | |
{ | |
extract($options); | |
if (($csv_handle = fopen($csv_path, "r")) === FALSE) | |
throw new Exception('Cannot open CSV file'); | |
if(!$delimiter) | |
$delimiter = ','; | |
if(!$table) | |
$table = preg_replace("/[^A-Z0-9]/i", '', basename($csv_path)); | |
if(!$fields){ | |
$fields = array_map(function ($field){ | |
return strtolower(preg_replace("/[^A-Z0-9]/i", '', $field)); | |
}, fgetcsv($csv_handle, 0, $delimiter)); | |
} | |
$create_fields_str = join(', ', array_map(function ($field){ | |
return "$field TEXT NULL"; | |
}, $fields)); | |
$pdo->beginTransaction(); | |
$create_table_sql = "CREATE TABLE IF NOT EXISTS $table ($create_fields_str)"; | |
$pdo->exec($create_table_sql); | |
$insert_fields_str = join(', ', $fields); | |
$insert_values_str = join(', ', array_fill(0, count($fields), '?')); | |
$insert_sql = "INSERT INTO $table ($insert_fields_str) VALUES ($insert_values_str)"; | |
$insert_sth = $pdo->prepare($insert_sql); | |
$inserted_rows = 0; | |
while (($data = fgetcsv($csv_handle, 0, $delimiter)) !== FALSE) { | |
$insert_sth->execute($data); | |
$inserted_rows++; | |
} | |
$pdo->commit(); | |
fclose($csv_handle); | |
return array( | |
'table' => $table, | |
'fields' => $fields, | |
'insert' => $insert_sth, | |
'inserted_rows' => $inserted_rows | |
); | |
} |
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