php 弹窗案例
<div class="cnblogs_code"><pre><?<span style="color: rgba(0, 0, 0, 1)">php
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 弹出对话框并且返回原来的页面</span>
<span style="color: rgba(0, 0, 255, 1)">echo</span> "<script language=\"JavaScript\">\r\n"<span style="color: rgba(0, 0, 0, 1)">;
</span><span style="color: rgba(0, 0, 255, 1)">echo</span> " alert(\"你好\");\r\n"<span style="color: rgba(0, 0, 0, 1)">;
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 历史返回；</span>
<span style="color: rgba(0, 0, 255, 1)">echo</span> " history.back();\r\n"<span style="color: rgba(0, 0, 0, 1)">;
</span><span style="color: rgba(0, 0, 255, 1)">echo</span> "</script>"<span style="color: rgba(0, 0, 0, 1)">;
</span><span style="color: rgba(0, 0, 255, 1)">exit</span><span style="color: rgba(0, 0, 0, 1)">;
</span>?></pre>
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<pre><!-- php弹窗，是利用javascript -->
<?<span style="color: rgba(0, 0, 0, 1)">php
</span><span style="color: rgba(0, 0, 255, 1)">echo</span> "<script language=\"JavaScript\">alert(\"你好\");</script>"<span style="color: rgba(0, 0, 0, 1)">;
</span>?></pre>
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<pre><!-- php弹窗，是利用javascript -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script>
<span style="color: rgba(0, 0, 255, 1)">function</span><span style="color: rgba(0, 0, 0, 1)"> del(){
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(confirm("确定要删除吗？"<span style="color: rgba(0, 0, 0, 1)">)){
alert(</span>'删除成功！'<span style="color: rgba(0, 0, 0, 1)">);
</span><span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(0, 0, 255, 1)">true</span><span style="color: rgba(0, 0, 0, 1)">;
}</span><span style="color: rgba(0, 0, 255, 1)">else</span><span style="color: rgba(0, 0, 0, 1)">{
</span><span style="color: rgba(0, 0, 255, 1)">return</span> <span style="color: rgba(0, 0, 255, 1)">false</span><span style="color: rgba(0, 0, 0, 1)">;
}
}
</span></script>
</body>
</html>
<?<span style="color: rgba(0, 0, 0, 1)">php
</span><span style="color: rgba(128, 0, 128, 1)">$button</span>=<<<<span style="color: rgba(0, 0, 0, 1)">STR
</span><button onclick="del()">删除</button><span style="color: rgba(0, 0, 0, 1)">
STR;
</span><span style="color: rgba(0, 0, 255, 1)">echo</span> <span style="color: rgba(128, 0, 128, 1)">$button</span><span style="color: rgba(0, 0, 0, 1)">;
</span>?></pre>
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<p> </p>
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<pre><?<span style="color: rgba(0, 0, 0, 1)">php
</span><span style="color: rgba(128, 0, 128, 1)">$user</span>=<span style="color: rgba(128, 0, 128, 1)">$_POST</span>["user"<span style="color: rgba(0, 0, 0, 1)">];
</span><span style="color: rgba(128, 0, 128, 1)">$pwd</span>=<span style="color: rgba(128, 0, 128, 1)">$_POST</span>["pwd"<span style="color: rgba(0, 0, 0, 1)">];
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(<span style="color: rgba(0, 128, 128, 1)">strlen</span>(<span style="color: rgba(128, 0, 128, 1)">$user</span>)==0<span style="color: rgba(0, 0, 0, 1)">){
alert(</span>"请输入用户名",'login.php'<span style="color: rgba(0, 0, 0, 1)">);
</span><span style="color: rgba(0, 0, 255, 1)">exit</span><span style="color: rgba(0, 0, 0, 1)">;
}
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(<span style="color: rgba(0, 128, 128, 1)">strlen</span>(<span style="color: rgba(128, 0, 128, 1)">$pwd</span>)==0<span style="color: rgba(0, 0, 0, 1)">){
</span><span style="color: rgba(0, 0, 255, 1)">echo</span> '请输入密码'<span style="color: rgba(0, 0, 0, 1)">;
</span><span style="color: rgba(0, 0, 255, 1)">exit</span><span style="color: rgba(0, 0, 0, 1)">;
}
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(<span style="color: rgba(128, 0, 128, 1)">$user</span>=="admin" && <span style="color: rgba(128, 0, 128, 1)">$pwd</span>==123456<span style="color: rgba(0, 0, 0, 1)">){
</span><span style="color: rgba(0, 0, 255, 1)">echo</span> '登录成功'<span style="color: rgba(0, 0, 0, 1)">;
}</span><span style="color: rgba(0, 0, 255, 1)">else</span><span style="color: rgba(0, 0, 0, 1)">{
</span><span style="color: rgba(0, 0, 255, 1)">echo</span> '用户名或密码错误'<span style="color: rgba(0, 0, 0, 1)">;
}
</span><span style="color: rgba(0, 0, 255, 1)">function</span> alert(<span style="color: rgba(128, 0, 128, 1)">$str</span>,<span style="color: rgba(128, 0, 128, 1)">$url</span><span style="color: rgba(0, 0, 0, 1)">){
</span><span style="color: rgba(0, 0, 255, 1)">echo</span>'<script>alert("'.<span style="color: rgba(128, 0, 128, 1)">$str</span>.'");location.href="'.<span style="color: rgba(128, 0, 128, 1)">$url</span>.'"</script>'<span style="color: rgba(0, 0, 0, 1)">;
}
</span>?></pre>
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<p> </p><br><br>
来源：https://www.cnblogs.com/xiaowie/p/12009245.html
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