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PHP : Function Reference : MySQL Improved Extension : mysqli_fetch_field_direct

mysqli_fetch_field_direct

Fetch meta-data for a single field (PHP 5)
object mysqli_fetch_field_direct ( mysqli_result result, int fieldnr )

Example 1493. Object oriented style

<?php
$mysqli
= new mysqli("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

$query = "SELECT Name, SurfaceArea from Country ORDER BY Name LIMIT 5";

if (
$result = $mysqli->query($query)) {

   
/* Get field information for column 'SurfaceArea' */
   
$finfo = $result->fetch_field_direct(1);

   
printf("Name:     %s\n", $finfo->name);
   
printf("Table:    %s\n", $finfo->table);
   
printf("max. Len: %d\n", $finfo->max_length);
   
printf("Flags:    %d\n", $finfo->flags);
   
printf("Type:     %d\n", $finfo->type);

   
$result->close();
}

/* close connection */
$mysqli->close();
?>

Example 1494. Procedural style

<?php
$link
= mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

$query = "SELECT Name, SurfaceArea from Country ORDER BY Name LIMIT 5";

if (
$result = mysqli_query($link, $query)) {

   
/* Get field information for column 'SurfaceArea' */
   
$finfo = mysqli_fetch_field_direct($result, 1);

   
printf("Name:     %s\n", $finfo->name);
   
printf("Table:    %s\n", $finfo->table);
   
printf("max. Len: %d\n", $finfo->max_length);
   
printf("Flags:    %d\n", $finfo->flags);
   
printf("Type:     %d\n", $finfo->type);

   
mysqli_free_result($result);
}

/* close connection */
mysqli_close($link);
?>

Code Examples / Notes » mysqli_fetch_field_direct

jonathan

The "type" property will return a numerical representation of a field type instead of a "meaningful" string.
Here is an array that may help you:
<?php
$mysqli_type = array();
$mysqli_type[0] = "DECIMAL";
$mysqli_type[1] = "TINYINT";
$mysqli_type[2] = "SMALLINT";
$mysqli_type[3] = "INTEGER";
$mysqli_type[4] = "FLOAT";
$mysqli_type[5] = "DOUBLE";
$mysqli_type[7] = "TIMESTAMP";
$mysqli_type[8] = "BIGINT";
$mysqli_type[9] = "MEDIUMINT";
$mysqli_type[10] = "DATE";
$mysqli_type[11] = "TIME";
$mysqli_type[12] = "DATETIME";
$mysqli_type[13] = "YEAR";
$mysqli_type[14] = "DATE";
$mysqli_type[16] = "BIT";
$mysqli_type[246] = "DECIMAL";
$mysqli_type[247] = "ENUM";
$mysqli_type[248] = "SET";
$mysqli_type[249] = "TINYBLOB";
$mysqli_type[250] = "MEDIUMBLOB";
$mysqli_type[251] = "LONGBLOB";
$mysqli_type[252] = "BLOB";
$mysqli_type[253] = "VARCHAR";
$mysqli_type[254] = "CHAR";
$mysqli_type[255] = "GEOMETRY";
?>


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