php man page for oci_field_size

OCI_FIELD_SIZE(3)														 OCI_FIELD_SIZE(3)

oci_field_size - Returns field's size

SYNOPSIS
       int oci_field_size (resource  $statement, mixed	$field)

DESCRIPTION
	Returns the size of a $field.

PARAMETERS
	      o $statement
		- A valid OCI statement identifier.

	      o $field
		- Can be the field's index (1-based) or name.

RETURN VALUES
	Returns the size of a $field in bytes, or FALSE on errors.

EXAMPLES
       Example #1

	      oci_field_size(3) example

	      <?php

	      // Create the table with:
	      //   CREATE TABLE mytab (number_col NUMBER, varchar2_col varchar2(1),
	      //		       clob_col CLOB, date_col DATE);

	      $conn = oci_connect("hr", "hrpwd", "localhost/XE");
	      if (!$conn) {
		  $m = oci_error();
		  trigger_error(htmlentities($m['message']), E_USER_ERROR);
	      }

	      $stid = oci_parse($conn, "SELECT * FROM mytab");
	      oci_execute($stid, OCI_DESCRIBE_ONLY); // Use OCI_DESCRIBE_ONLY if not fetching rows

	      echo "<table border="1">
";
	      echo "<tr>";
	      echo "<th>Name</th>";
	      echo "<th>Type</th>";
	      echo "<th>Length</th>";
	      echo "</tr>
";

	      $ncols = oci_num_fields($stid);

	      for ($i = 1; $i <= $ncols; $i++) {
		  $column_name	= oci_field_name($stid, $i);
		  $column_type	= oci_field_type($stid, $i);
		  $column_size	= oci_field_size($stid, $i);

		  echo "<tr>";
		  echo "<td>$column_name</td>";
		  echo "<td>$column_type</td>";
		  echo "<td>$column_size</td>";
		  echo "</tr>
";
	      }

	      echo "</table>
";

	      // Outputs:
	      //    Name	   Type       Length
	      //    NUMBER_COL	  NUMBER	22
	      //    VARCHAR2_COL  VARCHAR2	 1
	      //    CLOB_COL	  CLOB	      4000
	      //    DATE_COL	  DATE		 7

	      oci_free_statement($stid);
	      oci_close($conn);

	      ?>

NOTES
       Note

	       In  PHP	versions  before  5.0.0  you  must  use  ocicolumnsize(3)  instead.  This  name still can be used, it was left as alias of
	      oci_field_size(3) for downwards compatability. This, however, is deprecated and not recommended.

SEE ALSO
       oci_num_fields(3), oci_field_name(3).

PHP Documentation Group 													 OCI_FIELD_SIZE(3)