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mysqli_field_seek (PHP 5) mysqli_field_seek (no version information, might be only in CVS) result->field_seek --
Set result pointer to a specified field offset
DescriptionProcedural style: bool mysqli_field_seek ( mysqli_result result, int fieldnr ) Object oriented style (method): class mysqli_result { bool field_seek ( int fieldnr ) }
Sets the field cursor to the given offset. The next call to mysqli_fetch_field()
will retrieve the field definition of the column associated with that offset.
Замечание: To seek to the beginning of a row, pass an offset value of zero.
Возвращаемые значения
mysqli_field_seek() returns previuos value of field cursor.
ПримерыПример 1. Object oriented style |
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
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)) {
$result->field_seek(1);
$finfo = $result->fetch_field();
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();
}
$mysqli->close();
?>
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Пример 2. Procedural style |
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
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, $query)) {
mysqli_field_seek($result, 1);
$finfo = mysqli_fetch_field($result);
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);
}
mysqli_close($link);
?>
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Результат выполнения данного примера: Name: SurfaceArea
Table: Country
max. Len: 10
Flags: 32769
Type: 4 |
mysqli_field_seek
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mysqli_field_count