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PHP学习-1

php 搞代码 3年前 (2022-01-23) 21次浏览 已收录 0个评论

入门小实验

<code><title>My First Hello World</title><body>    <span><?php</span><span>// ?和php之间不能有空格</span><span>if</span>(!<span>empty</span>(<span>$_POST</span>[<span>'name'</span>]))        {            <span>echo</span><span>"Hello, {$_POST['name']}, Welcome to Our Web"</span>;        }    <span>?></span>    <form action=<span>"<?php $PHP_SELF; ?>"</span> method=<span>"post"</span>>        Enter Your Name:<input type=<span>"text"</span> name=<span>"name"</span>/>        <input type=<span>"submit"</span>/>        <span><?php</span><span>$mysql_host</span> = <span>"8.8.8.8"</span>;    <span>$mysql_user</span> = <span>"guess"</span>;    <span>$mysql_pwd</span>  = <span>"guess"</span>;    <span>$connect</span> = mysql_connect(<span>$mysql_host</span>,<span>$mysql_user</span>,<span>$mysql_pwd</span>) <span>or</span><span>die</span>(<span>"connect failed"</span> . mysql_error());    mysql_select_db(<span>"md_guess"</span>, <span>$connect</span>);    <span>$sql</span> = <span>"select * from t_user_1 limit ${_POST['name']};"</span>;    <span>$result</span> = mysql_query(<span>$sql</span>, <span>$connect</span>);    <span>if</span>(<span>$result</span>)    {        <span>// 获取列表名</span><span>$title</span> = <span>array</span>();        <span>for</span> (<span>$i</span>=<span>0</span>; <span>$i</span><mysql_num_fields(<span>$result</span>); <span>$i</span>++)        {            <span>$title</span>[<span>$i</span>] = mysql_field_name(<span>$result</span>, <span>$i</span>);        }        <span>$data</span> = <span>array</span>();        <span>$num</span> = <span>0</span>;        <span>// 获取数据</span><span>while</span> (<span>$row</span>=mysql_fetch_row(<span>$result</span>))        {            <span>$item</span> = <strong style="color:transparent">本文来源gaodai#ma#com搞@@代~&码*网/</strong><strong>搞gaodaima代码</strong><span>array</span>();            <span>for</span> (<span>$i</span>=<span>0</span>; <span>$i</span><mysql_num_fields(<span>$result</span>); <span>$i</span>++ )            {                <span>$item</span>[<span>$i</span>] = <span>$row</span>[<span>$i</span>];            }            <span>$data</span>[<span>$num</span>] = <span>$item</span>;            <span>$num</span> += <span>1</span>;        }        <span>// 显示数据</span><span>echo</span><span>'<table border="1" cellpadding="1" cellspacing="2">'</span>;        <span>for</span>(<span>$i</span>=<span>0</span>; <span>$i</span><count(<span>$title</span>); <span>$i</span>++)        {            <span>echo</span><span>"<tr>"</span>;            <span>echo</span><span>"<td>"</span>;            <span>echo</span><span>$title</span>[<span>$i</span>];            <span>echo</span><span>"</td>"</span>;            <span>for</span>(<span>$j</span>=<span>0</span>; <span>$j</span><count(<span>$data</span>); <span>$j</span>++)            {                <span>echo</span><span>"<td>"</span>;                <span>echo</span><span>$data</span>[<span>$j</span>][<span>$i</span>];                <span>echo</span><span>"</td>"</span>;            }            <span>echo</span><span>"</tr>"</span>;            <span>//echo "<br>";</span>        }        <span>echo</span><span>"</table>"</span>;    }    <span>else</span>    {        <span>echo</span><span>"Query Failed"</span>;    }    <span>if</span>(<span>$result</span>)    {        mysql_freeresult(<span>$result</span>);    }    mysql_close(<span>$connect</span>);    <span>?></span></code>

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    以上就介绍了PHP学习-1,包括了方面的内容,希望对PHP教程有兴趣的朋友有所帮助。


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