12 replies to this topic

[renatobohler]

Pessoal, estava tentando fazer um site que faz operações matemáticas em PHP mas não funcionou e não sei por q...

[codebox]<?
$a = "10";
$b = "20";
$resultado = "$a" + "$b";
$media = "$resultado" / 2;
echo '<p>Resultado de $a + $b= $resultado </p>';
echo 'Média aritimética entre $a e $b é $media';
?>[/codebox]


o que fiz de errado?

ps.: coloquei "$a = 10;", sem ; no final, com aspas, sem, tentei colocar na parte do ECHO <? echo $resultado?> e num funfo...

OBG

[]'s

Edição feita por: renatobohler, 26/05/2007, 16:22.

[The Cod]

Boas... ai vai o código correto dê uma estudada nele ok?
é muito simples é só prestar a atenção

<?
$a = 10;
$b = 20;
$resultado = $a + $b;
$media = $resultado /2;
echo "<p>Resultado de \$a + \$b= $resultado </p>";
echo "Média aritimética entre \$a e \$b é $media";
?>

Edição feita por: The Cod, 26/05/2007, 16:37.

[renatobohler]

hãããm, malditas battas haHahAh
valewzão cara!

[Paulo Freitas]

Começando pelo começo: Capítulo 12. Variáveis

[]’s Até mais

[savior]

Atribuindo valores de string nas variáveis ajuda O.o
Complementando o nobre colega Paulo Ricardo: Funções Matemáticas do php

[Paulo Freitas]

Atribuindo valores de string nas variáveis ajuda O.o

Não entendi!

Nobre eu?

Nobreza de sua parte... Até mais

[savior]

Atribuindo valores de string nas variáveis ajuda O.o

Não entendi!

Nobre eu?

Nobreza de sua parte...

Não ... é que ele quis fazer operações aritiméticas com variaveis declaradas string. Eu sou mais da natureza que inteiro é inteiro e string é string

Tá certo que o php aceita de tudo, é um pai bem complacente. Ao contrário do java '

<?
$a = "10"; //String O.o
$b = "20"; //String O.o
$resultado = "$a" + "$b"; //Ohhh soma de strings \o
$media = "$resultado" / 2; //Divisão de strings O.o
echo '<p>Resultado de $a + $b= $resultado </p>';
echo 'Média aritimética entre $a e $b é $media';
?>

[Paulo Freitas]

Não ... é que ele quis fazer operações aritiméticas com variaveis declaradas string. Eu sou mais da natureza que inteiro é inteiro e string é string

Ah sim, dãã, como sou lerdo...

Tá certo que o php aceita de tudo, é um pai bem complacente. Ao contrário do java '

Aceitar ele até aceita, mas por ser um pai rígido como o é, ele tem o prazer de deixar seus filhos na mão quando estes não o seguem em seu padrão de vida...

[]’s Até mais

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