This article introduces how to write a calculator using PHP HTML Javascript technology. I hope it will be helpful to students who are learning PHP development!
Write a calculator in PHP
window.onload = function() {
document.getElementsByName('sum3')[0].setAttribute('value', '$sum')
document.getElementsByName('sum1')[0].setAttribute('value', '$sum1')
document.getElementsByName('sum2')[0].setAttribute('value', '$sum2')
document.getElementsByName('{$op}')[0].setAttribute('selected','selected')
}
shi;
} else {
echo '输入内容必须是数字';
}
};
?>
(Free learning video tutorial sharing: php video tutorial)
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