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Funções da MySQL
PHP Manual

mysql_error

(PHP 4, PHP 5)

mysql_errorRetorna o texto da mensagem de erro da operação MySQL anterior

Descrição

string mysql_error ([ resource $link_identifier ] )

Retorna o texto do erro da ultima função MySQL. Erros vindos do banco de dados MySQL não geram mais avisos. Ao invés, use mysql_error() para obter o texto do erro. Note que esta função apenas retorna o texto do erro da função MySQL mais recentemente executada (não incluindo mysql_error() e mysql_errno()), assim se você quiser usa-la, tenha certesa de usar o valor antes de utilizar outra função MySQL.

Parâmetros

link_identifier

A conexão MySQL. se o identificador de conexão não for especificado, a ultima conexão aberta por mysql_connect() é assumida. Se uma conexão assim não for encontrada, ela irá tentar criar uma como se a função mysql_connect() fosse chamada sem argumentos. Se uma conexão não for encontrada ou estabelecida, um aviso de nível de erro E_WARNING é gerado.

Valor Retornado

Retorna o texto do erro da ultima função MySQL, ou '' (uma string vazia) se não houve erro.

Exemplos

Exemplo #1 Exemplo mysql_error()

<?php
$link 
mysql_connect("localhost""mysql_user""mysql_password");

mysql_select_db("nonexistentdb"$link);
echo 
mysql_errno($link) . ": " mysql_error($link). "\n";

mysql_select_db("kossu"$link);
mysql_query("SELECT * FROM nonexistenttable"$link);
echo 
mysql_errno($link) . ": " mysql_error($link) . "\n";
?>

O exemplo acima irá imprimir algo similar a:

1049: Unknown database 'nonexistentdb'
1146: Table 'kossu.nonexistenttable' doesn't exist

Veja Também


Funções da MySQL
PHP Manual

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