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PHP开发常用的10段代码

时间:2024-09-11 06:29:12 php语言 我要投稿
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PHP开发常用的10段代码

  PHP是一种通用开源脚本语言。语法吸收了C语言、Java和Perl的特点,下文是为大家精选的PHP开发常用的10段代码,欢迎大家阅读。


  1、使用PHP Mail函数发送Email

  $to = "viralpatel.net@gmail.com";

  $subject = "VIRALPATEL.net";

  $body = "Body of your message here you can use HTML too. e.g. ﹤br﹥ ﹤b﹥ Bold ﹤/b﹥";

  $headers = "From: Peter ";

  $headers .= "Reply-To: info@yoursite.com ";

  $headers .= "Return-Path: info@yoursite.com ";

  $headers .= "X-Mailer: PHP5 ";

  $headers .= 'MIME-Version: 1.0' . " ";

  $headers .= 'Content-type: text/html; charset=iso-8859-1' . " ";

  mail($to,$subject,$body,$headers);

  ?﹥

  2、PHP中的64位编码和解码

  function base64url_encode($plainText) {

  $base64 = base64_encode($plainText);

  $base64url = strtr($base64, '+/=', '-_,');

  return $base64url;

  }

  function base64url_decode($plainText) {

  $base64url = strtr($plainText, '-_,', '+/=');

  $base64 = base64_decode($base64url);

  return $base64;

  }

  3、获取远程IP地址

  function getRealIPAddr()

  {

  if (!empty($_SERVER['HTTP_CLIENT_IP'])) //check ip from share internet

  {

  $ip=$_SERVER['HTTP_CLIENT_IP'];

  }

  elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) //to check ip is pass from proxy

  {

  $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];

  }

  else

  {

  $ip=$_SERVER['REMOTE_ADDR'];

  }

  return $ip;

  }

  4、 日期格式化

  function checkDateFormat($date)

  {

  //match the format of the date

  if (preg_match ("/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/", $date, $parts))

  {

  //check weather the date is valid of not

  if(checkdate($parts[2],$parts[3],$parts[1]))

  return true;

  else

  return false;

  }

  else

  return false;

  }

  5、验证Email

  $email = $_POST['email'];

  if(preg_match("~([a-zA-Z0-9!#$%&'*+-/=?^_`{|}~])@([a-zA-Z0-9-]).

  ([a-zA-Z0-9]{2,4})~",$email)) {

  echo 'This is a valid email.';

  } else{

  echo 'This is an invalid email.';

  }

  6、在PHP中轻松解析XML

  //this is a sample xml string

  $xml_string="﹤?xml version='1.0'?﹥

  ﹤moleculedb﹥

  ﹤molecule name='Benzine'﹥

  ﹤symbol﹥ben﹤/symbol﹥

  ﹤code﹥A﹤/code﹥

  ﹤/molecule﹥

  ﹤molecule name='Water'﹥

  ﹤symbol﹥h2o﹤/symbol﹥

  ﹤code﹥K﹤/code﹥

  ﹤/molecule﹥

  ﹤/moleculedb﹥";

  //load the xml string using simplexml function

  $xml = simplexml_load_string($xml_string);

  //loop through the each node of molecule

  foreach ($xml-﹥molecule as $record)

  {

  //attribute are accessted by

  echo $record['name'], ' ';

  //node are accessted by -﹥ operator

  echo $record-﹥symbol, ' ';

  echo $record-﹥code, '﹤br /﹥';

  }

  7、数据库连接

  ﹤?php

  if(basename(__FILE__) == basename($_SERVER['PHP_SELF'])) send_404();

  $dbHost = "localhost"; //Location Of Database usually its localhost

  $dbUser = "xxxx"; //Database User Name

  $dbPass = "xxxx"; //Database Password

  $dbDatabase = "xxxx"; //Database Name

  $db = mysql_connect("$dbHost", "$dbUser", "$dbPass") or

  die ("Error connecting to database.");

  mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database.");

  # This function will send an imitation 404 page if the user

  # types in this files filename into the address bar.

  # only files connecting with in the same directory as this

  # file will be able to use it as well.

  function send_404()

  {

  header('HTTP/1.x 404 Not Found');

  print '﹤!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"﹥'."n".

  '﹤html﹥﹤head﹥'."n".

  '﹤title﹥404 Not Found﹤/title﹥'."n".

  '﹤/head﹥﹤body﹥'."n".

  '﹤h1﹥Not Found﹤/h1﹥'."n".

  '﹤p﹥The requested URL '.

  str_replace(strstr($_SERVER['REQUEST_URI'], '?'), '', $_SERVER['REQUEST_URI']).

  ' was not found on this server.﹤/p﹥'."n".

  '﹤/body﹥﹤/html﹥'."n";

  exit;

  }

  # In any file you want to connect to the database,

  # and in this case we will name this file db.php

  # just add this line of php code (without the pound sign):

  # include"db.php";

  ?﹥

  8、创建和解析JSON数据

  $json_data = array ('id'=﹥1,'name'=﹥"rolf",'country'=﹥'russia',

  "office"=﹥array("google","oracle"));

  echo json_encode($json_data);

  9、处理MySQL时间戳

  $query = "select UNIX_TIMESTAMP(date_field) as mydate

  from mytable where 1=1";

  $records = mysql_query($query) or die(mysql_error());

  while($row = mysql_fetch_array($records))

  {

  echo $row;

  }

  10、解压缩Zip文件

  ﹤?php

  function unzip($location,$newLocation){

  if(exec("unzip $location",$arr)){

  mkdir($newLocation);

  for($i = 1;$i﹤ count($arr);$i++){

  $file = trim(preg_replace("~inflating: ~","",$arr[$i]));

  copy($location.'/'.$file,$newLocation.'/'.$file);

  unlink($location.'/'.$file);

  }

  return TRUE;

  }else{

  return FALSE;

  }

  }

  ?﹥

  //Use the code as following:

  ﹤?php

  include 'functions.php';

  if(unzip('zipedfiles/test.zip','unziped/myNewZip'))

  echo 'Success!';

  else

  echo 'Error';

  ?﹥


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