$database API variable / WireDatabasePDO class

All database operations in ProcessWire are performed via this PDO-style database class.

Click any linked item for full usage details and examples. Hookable methods are indicated with the icon. In addition to those shown below, the WireDatabasePDO class also inherits all the methods and properties of: Wire.

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PDO

NameReturnSummary 
$database->allowTransaction()
boolAllow a new transaction to begin right now? (i.e. supported and not already in one) 
$database->beginTransaction()
boolInitiates a transaction 
$database->commit()
boolCommits a transaction 
$database->errorCode()
stringFetch the SQLSTATE associated with the last operation on the statement handle 
$database->errorInfo()
arrayFetch extended error information associated with the last operation on the database handle 
$database->exec($statement)
bool intExecute an SQL statement string 
$database->getAttribute(int $attribute)
mixedRetrieve a database connection attribute 
$database->inTransaction()
boolChecks if inside a transaction 
$database->lastInsertId()
stringReturns the ID of the last inserted row or sequence value 
$database->pdo()
PDOReturn the actual current PDO connection instance 
$database->prepare(string $statement)
PDOStatement WireDatabasePDOStatementPrepare an SQL statement for accepting bound parameters 
$database->query(string $statement)
PDOStatementExecutes an SQL statement, returning a result set as a PDOStatement object 
$database->quote(string $str)
stringQuote and escape a string value 
$database->rollBack()
boolRolls back a transaction 
$database->setAttribute(int $attribute, mixed $value)
boolSets an attribute on the database handle 
$database->supportsTransaction()
boolAre transactions available with current DB engine (or table)? 

Custom

NameReturnSummary 
$database->backups()
WireDatabaseBackupRetrieve new instance of WireDatabaseBackups ready to use with this connection 
$database->closeConnection()
(nothing)Close the PDO connection 
$database->columnExists(string $table)
bool arrayDoes the given column exist in given table? 
$database->execute(\PDOStatement $query)
boolExecute a PDO statement, with retry and error handling 
$database->getTables()
arrayGet array of all tables in this database. 
$database->getVariable(string $name)
string intGet the value of a MySQL variable 
$database->isOperator(string $str)
boolIs the given string a database comparison operator? 
$database->queryLog()
array bool intLog a query, or return logged queries 
$database->sqlMode()
string boolGet SQL mode, set SQL mode, add to existing SQL mode, or remove from existing SQL mode 
$database->tableExists(string $table)
boolDoes the given table exist in this database? 

Sanitization

NameReturnSummary 
$database->escapeCol(string $col)
stringSanitize a column name for _a-zA-Z0-9 
$database->escapeLike(string $like)
stringEscape a string value, plus escape characters necessary for a MySQL 'LIKE' phrase 
$database->escapeStr(string $str)
stringEscape a string value, same as $db->quote() but without surrounding quotes 
$database->escapeTable(string $table)
stringSanitize a table name for _a-zA-Z0-9 
$database->escapeTableCol(string $str)
stringSanitize a table.column string, where either part is optional 
$database->quote(string $str)
stringQuote and escape a string value 

Additional methods and properties

In addition to the methods and properties above, WireDatabasePDO also inherits the methods and properties of these classes:

API reference based on ProcessWire core version 3.0.172

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