php笔记

环境地址

https://www.appserv.org/en/

apache + php + mysql

 

开发工具地址：

eclipsePHP Studio

http://epp.php100.com/

 

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);

?>