我的HTML代码:
{% extends "base.html" %}
{% block title %}Index{% endblock %}
{% block head %}
{{ parent() }}
<style type="text/css">
.important { color: #336699; }
</style>
{% endblock %}
{% block content %}
<h1>Index</h1>
<p class="important">
Welcome on my awesome homepage.
</p>
{% endblock %}
这是我的PHP代码:
<form action="myfile.php" method="POST">
Data
<select id="data" name="data" class="form-control" required>
<option value="data1">Data 1</option>
<option value="data2">Data 2</option>
</select>
Value
<select id="value" name="value" class="form-control" required>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
</form>
如果选择数据1并且值必须大于3,如果不是,它将会注意到“数据1的值必须大于3”,如果没有错误,它将返回到我的进程
答案 0 :(得分:0)
检查:
$nr =0;
while($row = $result->fetch_assoc() ) {
$nr++;
if(($count-1)%3==0) echo '<div class="row">';
//Add your content units here.
if(($count)%3==0) echo '</div>';
}
答案 1 :(得分:0)
试试这个
if($data == "data1" && $value > 3) {
//everything is fine
} else {
// through notice
}