MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli_result::$current_field
mysqli_field_tell
Get current field offset of a result pointer
Object oriented style
int mysqli_result->current_field ;
Procedural style
int mysqli_field_tell(mysqli_result result);
Returns the position of the field cursor used for the last
mysqli_fetch_field
call. This value can be used as an argument to
mysqli_field_seek
.
result
Procedural style only: A result set identifier returned
by
mysqli_query
,
mysqli_store_result
or
mysqli_use_result
.
Returns current offset of field cursor.
Example 3.105 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(); } $query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5"; if ($result = $mysqli->query($query)) { /* Get field information for all columns */ while ($finfo = $result->fetch_field()) { /* get fieldpointer offset */ $currentfield = $result->current_field; printf("Column %d:\n", $currentfield); 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\n", $finfo->type); } $result->close(); } /* close connection */ $mysqli->close(); ?>
Example 3.106 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(); } $query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5"; if ($result = mysqli_query($link, $query)) { /* Get field information for all fields */ while ($finfo = mysqli_fetch_field($result)) { /* get fieldpointer offset */ $currentfield = mysqli_field_tell($result); printf("Column %d:\n", $currentfield); 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\n", $finfo->type); } mysqli_free_result($result); } /* close connection */ mysqli_close($link); ?>
The above examples will output:
Column 1: Name: Name Table: Country max. Len: 11 Flags: 1 Type: 254 Column 2: Name: SurfaceArea Table: Country max. Len: 10 Flags: 32769 Type: 4
mysqli_fetch_field
|
mysqli_field_seek
|