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PHP - PHP Notice: Undefined offset

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PHP Notice: Undefined offset

Publicado por Miguel Antonio Fernández (2 intervenciones) el 28/05/2013 22:56:44
Hola buenas, necesito ayuda con un ejercicio en php en el que tengo que crear una tabla mdiante una funcion en php, mi codigo es el siguiente:

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<?php
function fun2($filas,$colum)
{
$a[$filas][$colum]=0;
echo ("<table border='1'>");
 
    for ($i=0;$i<$filas;$i++)
{
    echo("<tr>");
        for($j=0;$j<$colum;$j++)
{
        echo("<td width='30px'>".$a[$i][$j]."</td>");
     }
         }
 
echo("</table>");
}
fun2(10,10);
?>


El error esta en la linea 12 pero sinceramente no lo veo.
Estoy empezando ahora con esto de PHP.
Gracias de antemano.
Un saludo.
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Imágen de perfil de Jon

PHP Notice: Undefined offset

Publicado por Jon (27 intervenciones) el 29/05/2013 02:14:14
El ARRAY no tiene nada dentro. te menciona error por que no aya valor.
aquí te doy el resultado.

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<?php
function fun2($filas,$colum)
{
$a[$filas][$colum]=0;
echo ("<table border='1'>");
 
for ($i=0;$i<$filas;$i++)
{
echo("<tr>");
for($j=0;$j<$colum;$j++)
{
echo("<td width='30px'>".$a[$i][$j]."</td>");
}
}
 
echo("</table>");
}
fun2(10,10);
?>
<table border='1'><tr>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 0 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 1 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 2 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 3 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 4 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 5 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 6 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 7 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 8 in - on line 12
<td width='30px'></td><tr>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
<td width='30px'></td>PHP Notice:  Undefined offset: 9 in - on line 12
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