Question

我疯了，因为我无法弄清楚.. 我正在创建一个代码，告诉我将打印多少个面板。

PHP代码是这样的：

<?php
$base = 400; //the width
$altezza = 300; //the height (no need for calculation)
$larg_fasce = 60; //the size of each piece (always 60cm)

$num_fasce = floor($base/$larg_fasce); //calc the numbers of piece needed to cover the $base
$dim_fasce = floor($base/$num_fasce); //calc the size of each piece

$resto = $base-($num_fasce*$larg_fasce); //calc the rest to cover the $base



/////////////
echo "Base: ".$base."<br>";
echo "Altezza: ".$altezza."<br>";
echo "Largh Fasce: ".$larg_fasce."<br><br>";

echo "Verranno fornite ".$num_fasce." fasce da ".$larg_fasce." cm - tot (".$num_fasce*$larg_fasce."cm)<br>";
if($resto != 0){
echo "Verra fornita 1 fascia da ".$resto." cm";
}

?>

此代码完美运行（当我手动设置$ base大小时）。我需要这个变量＆＃34; $ base＆＃34;是从输入字段中获取并实时更新的，我该怎么做？

Answer 1

设置$ base = $ _GET ['base']，你的网址是这样的：test.php？base = 400 它会运作良好。

另一种方法是构建一个表单，它允许你输入$ base，通过post或get，然后你可以使用$ base。

希望这些能帮到你~~

<?php
$base = $_GET['base']; //the width
$altezza = 300; //the height (no need for calculation)
$larg_fasce = 60; //the size of each piece (always 60cm)

$num_fasce = floor($base/$larg_fasce); //calc the numbers of piece needed to cover the $base
$dim_fasce = floor($base/$num_fasce); //calc the size of each piece

$resto = $base-($num_fasce*$larg_fasce); //calc the rest to cover the $base



/////////////
echo "Base: ".$base."<br>";
echo "Altezza: ".$altezza."<br>";
echo "Largh Fasce: ".$larg_fasce."<br><br>";

echo "Verranno fornite ".$num_fasce." fasce da ".$larg_fasce." cm - tot (".$num_fasce*$larg_fasce."cm)<br>";
if($resto != 0){
echo "Verra fornita 1 fascia da ".$resto." cm";
}

?>

根据用户输入使用ajax动态更新PHP变量

1 个答案: