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PHP mysqli_field_seek() Function

< PHP MySQLi Reference

Example

Set the field cursor to the first field (column) in the result set, then get the field info with mysqli_fetch_field() and print the field's name, table, and max length:

<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname";

if ($result=mysqli_query($con,$sql))
  {
  // Get field info for 1st column ("Lastname")
  mysqli_field_seek($result,0);
  $fieldinfo=mysqli_fetch_field($result);

  printf("Name: %s\n",$fieldinfo->name);
  printf("Table: %s\n",$fieldinfo->table);
  printf("max. Len: %d\n",$fieldinfo->max_length);

  // Free result set
  mysqli_free_result($result);
}

mysqli_close($con);
?>

Definition and Usage

The mysqli_field_seek() function sets the field cursor to the given field offset.


Syntax

mysqli_field_seek(result,fieldnr);

Parameter Description
result Required. Specifies a result set identifier returned by mysqli_query() , mysqli_store_result() or mysqli_use_result()
fieldnr Required. Specifies the field number. Must be an integer between 0 and number of fields -1

Technical Details

Return Value: TRUE on success. FALSE on failure
PHP Version: 5+

< PHP MySQLi Reference