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mysqli_result::$current_field

mysqli_field_tell

(PHP 5, PHP 7, PHP 8)

mysqli_result::$current_field -- mysqli_field_tellGet current field offset of a result pointer

Descrição

Estilo orientado à objeto

Estilo procedural

mysqli_field_tell(mysqli_result $result): int

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().

Parâmetros

result

Somente no estilo procedural: Um recurso result set retornado por mysqli_query(), mysqli_store_result() ou mysqli_use_result().

Valor Retornado

Returns current offset of field cursor.

Exemplos

Exemplo #1 Estilo orientado à objeto

<?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();
?>

Exemplo #2 Estilo procedural

<?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);
?>

Os exemplos acima irão imprimir:

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

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