(PHP 5, PHP 7)
Get current field offset of a result pointer
int mysqli_field_tell ( mysqli_result $result )
Object oriented style
Procedural style
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().
Parameters:
result
Procedural style only: A result set identifier returned by mysqli_query(), mysqli_store_result() or mysqli_use_result().
Returns:
Returns current offset of field cursor.
Examples:
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(); ?>
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
See also:
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