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
'; $str = array( "书籍" => array("文学","历史","地理"), "体育用品" => array(m=>"足球",n=>"篮球"), "水果" => array("橙子",8=>"葡萄","苹果")); print_r($str); //数组遍历 echo '
数组遍历
'; $url = array('编程词典网'=>'www.mrbccd.com', '编程体验网'=>'www.bcty365.com', '编程资源网'=>'www.bc110.com'); foreach($url as $link){ echo $link.'
'; } //+为运算符， .为连接符 echo '数组个数:' . count($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($fopen); echo '
'; } fclose($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
<?php
do{
?>
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 "";
mysql_free_result($sql);
mysql_close($conn);
?>
'; $str = array( "书籍" => array("文学","历史","地理"), "体育用品" => array(m=>"足球",n=>"篮球"), "水果" => array("橙子",8=>"葡萄","苹果")); print_r($str); //数组遍历 echo '
数组遍历
'; $url = array('编程词典网'=>'www.mrbccd.com', '编程体验网'=>'www.bcty365.com', '编程资源网'=>'www.bc110.com'); foreach($url as $link){ echo $link.'
'; } //+为运算符， .为连接符 echo '数组个数:' . count($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($fopen); echo '
'; } fclose($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
| <?php echo $info[user]; ?> | <?php echo $info[password]; ?> | <?php echo $info[createtime]; ?> |