PHP笔记
环境地址
标记风格
<?php ... ?> （推荐）
或<% ... %>
数据检测
is_bool is_null is_array is_object
is_string is_int
implode 字符串转数组
explode 数组转字符串
array_push 向数组中添加元素
array_unique 删除数组中重复元素
全局变量 $_GET[变量名]
局部变量 $_POST[变量名]
获取表单元素的值 $_SESSION[..]
页面包含 <?php include 'url.php';?>
<?php
//二维数组
echo '二维数组<br>';
$str = array(
"书籍" => array("文学","历史","地理"),
"体育用品" => array(m=>"足球",n=>"篮球"),
"水果" => array("橙子",8=>"葡萄","苹果"));
print_r($str);
//数组遍历
echo '<br><br>数组遍历<br>';
$url = array('编程词典网'=>'www.mrbccd.com', '编程体验网'=>'www.bcty365.com', '编程资源网'=>'www.bc110.com');
foreach($url as $link){
echo $link.'<br>';
}
//+为运算符， .为连接符
echo '数组个数:' . count($url);
?>
cookie.php
<?php
setcookie("TMCookie", "www.test.com", time()+3600);
echo $_COOKIE["TMCookie"];
//删除cookie
//setcookie("TMCookie", "", 0);
?>
img_test.php
<?php
header("content-type:image/jpeg");
$im = imagecreatefromjpeg("1.jpg");
$textcolor = imagecolorallocate($im,58,73,136);
imagejpeg($im);
imagedestroy($im);
?>
read_file.php
<?php
$fopen = fopen("1.txt",'rb');
while(!feof($fopen)){
echo fgets($fopen);
echo '<br>';
}
fclose($fopen);
?>
session.php
<?php
$time = 1*60;
session_set_cookie_params($time);
session_start();
$_SESSION['admin']='admin';
echo $_SESSION['admin'];
?>
<?php
$link = mysql_connect("localhost", "root", "passw0rd") or die("连接失败".mysql_error());
if($link){
echo "数据库连接成功！";
}
$db_selected = mysql_select_db("test", $link);
if($db_selected){
echo "数据库选择成功！";
}
mysql_query("set names gb2312");
$sql = mysql_query("select * from tb_admin");
$info = mysql_fetch_array($sql);
?>
search.php
<table>
<?php
do{
?>
<tr>
<td><?php echo $info[user]; ?></td>
<td><?php echo $info[password]; ?></td>
<td><?php echo $info[createtime]; ?></td>
</tr>
<?php
}while($info=mysql_fetch_array($sql));
?>
</table>
check_add_admin.php
<?php
$conn = mysql_connect("localhost", "root", "passw0rd");
mysql_select_db("test", $conn);
mysql_query("set names gb2312");
$user = $_POST[user];
$password = $_POST[password];
$createtime = date("Y-m-d H:i:s");
$sql = mysql_query("insert into tb_admin(user,password,createtime) values('$user','$password','$createtime')");
echo "<script>alert('添加成功');window.location.href='add_admin.php';</script>";
mysql_free_result($sql);
mysql_close($conn);
?>
