PHP實(shí)現(xiàn)簡(jiǎn)單的計(jì)算器
本文實(shí)例為大家分享了PHP實(shí)現(xiàn)簡(jiǎn)單計(jì)算器的具體代碼，供大家參考，具體內(nèi)容如下
caculator.php
<html><head> </head><body> <?phpif (!empty($_POST)) { $data1 = $_POST['data1']; $data2 = $_POST['data2']; $fuhao = $_POST['fuhao']; $result = ''; echo $data1; echo $data2; echo $fuhao; echo $result; if ($fuhao == ’+’) { $result = $data1 + $data2; } else if ($fuhao == ’-’) { $result = $data1 - $data2; } else if ($fuhao == ’*’) { $result = $data1 * $data2; } else if ($fuhao == ’/’) { $result = $data1 / $data2; }} else { $data1 = ''; $data2 = ''; $fuhao = ''; $result = '';} ?> <form action='caculator.php' method='post'> <input type='text' name='data1' value='<?php echo $data1; ?>'/> <select name='fuhao'> <option value='+'<?php if ($fuhao == '+') { echo ’selected='selected'’;} ?>>+ </option> <option value='-'<?php if ($fuhao == '-') { echo ’selected='selected'’;} ?>>- </option> <option value='*'<?php if ($fuhao == '*') { echo ’selected='selected'’;} ?>>* </option> <option value='/' <?php if ($fuhao == '/') { echo ’selected='selected'’; } ?>>/ </option> </option> </select> <input type='text' name='data2' value='<?php echo $data2; ?>'/> <input type='submit' value='='/> <input name='result' type='text' value='<?php echo $result; ?>'/> <input type='reset'/> </form> </body></html>
運(yùn)行結(jié)果：
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持好吧啦網(wǎng)。
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