Description
int 
oci_field_size ( resource stmt, mixed field )
     oci_field_size() returns the size of a field in
     bytes. Value of field parameter can be the field's
     index (1-based) or it's name.
    
     
例子 1. oci_field_size()example 
<?php        $conn = oci_connect("scott", "tiger");     $stmt = oci_parse($conn, "SELECT * FROM emp");     oci_execute($stmt);          echo "<table border=\"1\">";     echo "<tr>";     echo "<th>Name</th>";     echo "<th>Type</th>";     echo "<th>Length</th>";     echo "</tr>";         $ncols = oci_num_fields($stmt);         for ($i = 1; $i <= $ncols; $i++) {         $column_name  = oci_field_name($stmt, $i);         $column_type  = oci_field_type($stmt, $i);         $column_size  = oci_field_size($stmt, $i);         echo "<tr>";         echo "<td>$column_name</td>";         echo "<td>$column_type</td>";         echo "<td>$column_size</td>";         echo "</tr>";     }             echo "</table>";         oci_free_statement($stmt);       oci_close($conn);    ?>
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    注: 
      In PHP versions before 5.0.0 you must use ocicolumnsize() instead. 
      This name still can be used, it was left as alias of
      oci_field_size() for downwards compatability. 
      This, however, is deprecated and not recommended.
     
     See also oci_num_fields() and
     oci_field_name().