Get meta-data for a column, then print the field's name, table, and max length in PHP
Description
The following code shows how to get meta-data for a column, then print the field's name, table, and max length.
Example
/* w ww.ja v a 2s . co m*/
<?php
$con=mysqli_connect("localhost","root","","test");
// Check connection
if (mysqli_connect_errno()){
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql="SELECT name FROM employee";
if ($result=mysqli_query($con,$sql)){
// Get field information for "Age"
$fieldinfo=mysqli_fetch_field_direct($result,1);
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);
?>
The code above generates the following result.
