mysqli_field_tell
(PHP 5)
mysqli_field_tell
(no version information, might be only in CVS)
result->current_field --
Obtém o índice do campo de um ponteiro de resultado
Descrição
Estilo de procedimento:
int
mysqli_field_tell ( object result )
Estilo orientado a objeto (propriedade):
class
result {
int current_field
}
Retorna a posição do cursor do campo usado para a última chamada a
mysqli_fetch_field(). Este valor pode ser usado
como argumento para mysqli_field_seek().
Valores Retornados
Retorna o índice atual do cursor do campo.
Exemplo
Exemplo 1. Estilo orientado a 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(); ?>
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Exemplo 2. Estilo de procedimento
<?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); ?>
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Os exemplos acima devem produzir a seguinte saída:
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 |