ibase_field_info()
(PHP 5, PHP 7)
Get information about a field
说明
ibase_field_info(resource $result,int $field_number): array
Returns an array with information about a field after a select query has been run.
参数
- $result
An InterBase result identifier.
- $field_number
Field offset.
返回值
Returns an array with the following keys:name,alias,relation,lengthandtype.
范例
Example #1 ibase_field_info() example
<?php $rs = ibase_query("SELECT * FROM tablename"); $coln = ibase_num_fields($rs); for ($i = 0; $i < $coln; $i++) { $col_info = ibase_field_info($rs, $i); echo "name: ". $col_info['name']. "\n"; echo "alias: ". $col_info['alias']. "\n"; echo "relation: ". $col_info['relation']. "\n"; echo "length: ". $col_info['length']. "\n"; echo "type: ". $col_info['type']. "\n"; } ?>
参见
ibase_num_fields()
Get the number of fields in a result set
In Firebird 1.5 this function INT64 returned to the fields created as floating point numbers. In Firebird 2.x this function returns as NUMERIC (SIZE, PRECISION). Example: NUMERIC (18,2) In Brazilian Portuguese: No Firebird 1.5 esta função retornava INT64 para os campos criados como numéricos com ponto flutuante. No Firebird 2.x esta função retorna como NUMERIC(TAMANHO, PRECISAO). Exemplo: NUMERIC(18,2)
Example: $db = ibase_connect($host,$username,$password, "None", 0, 3 ) or die ('Error trying connect to Database!'); $select = "SELECT * from TABLE"; $sql = ibase_query($db,$select) or die($select); $total_fields= ibase_num_fields($sql); for ($j = 1; $j <= $total_fields; $j++) { $info_field = ibase_field_info($sql, $j-1 ); print("Name: " . $info_campo[1]); // print the field name print("Type:". $info_campo[4]); //print the field type print("Size: " . $info_campo[3]); // print the field size } This function does not return the type from the fields as we are accustomed in interbase. Example: Fields VARCHAR are returns as VARYING. Fields of the type CHAR return TEXT. Tested in Firebird 1.5 Super Server.