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Retrieves metadata for the fields of a statement prepared by sqlsrv_prepare() or sqlsrv_query()
mixed sqlsrv_field_metadata ( resource $stmt )
Retrieves metadata for the fields of a statement prepared by sqlsrv_prepare() or sqlsrv_query(). sqlsrv_field_metadata() can be called on a statement before or after statement execution.
Parameters:
stmt
The statment resource for which metadata is returned.
Returns:
Returns an array of arrays is returned on success. Otherwise, FALSE
is returned. Each returned array is described by the following table:
Key | Description |
---|---|
Name | The name of the field. |
Type | The numeric value for the SQL type. |
Size | The number of characters for fields of character type, the number of bytes for fields of binary type, or NULL for other types. |
Precision | The precision for types of variable precision, NULL for other types. |
Scale | The scale for types of variable scale, NULL for other types. |
Nullable | An enumeration indicating whether the column is nullable, not nullable, or if it is not known. |
Examples:
sqlsrv_field_metadata() example
<?php $serverName = "serverName\sqlexpress"; $connectionInfo = array( "Database"=>"AdventureWorks", "UID"=>"username", "PWD"=>"password"); $conn = sqlsrv_connect( $serverName, $connectionInfo); if( $conn === false ) { die( print_r( sqlsrv_errors(), true)); } $sql = "SELECT * FROM Table_1"; $stmt = sqlsrv_prepare( $conn, $sql ); foreach( sqlsrv_field_metadata( $stmt ) as $fieldMetadata ) { foreach( $fieldMetadata as $name => $value) { echo "$name: $value<br />"; } echo "<br />"; } ?>
See also:
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