Php

PHP to prevent SQL statements to inject common methods: Filter method $id =$_get["id"]; $query = "SELECT * from my_table where id= '". $id. "'"; Injection vulnerability $result=mysql_query ($query); It is clear that we can use injection to get the rest of the database. You can use the following method ...

php tutorial to filter illegal character function $ str = "<a> fdafsa '' & # x </a>"; echo htmlspecialchars ($ str); / * & (and) into & amp; ; <(Less than) turn into <> (greater than) turn into & g ...

/ php tutorial Chinese characters interception function // string to be intercepted, $ num to intercept the length of return truncated string public function substrgb ($ in, $ num) {// $ num = 16; $ pos = 0; & ...

PHP Tutorial Getting hyperlink text content several regular expressions//Methods One Preg_match_all ('/< (a|a) [s]{0,1}[w= ":()]*>[nrn]* (check user) [nrn]*</(A|a) >/i ', $string, $matches);//Method Two Preg_match_all ('/<a[dd]*>check user</a>

? PHP Tutorial The easiest way to get an array of the last element-free value/method A $url = ' www.jzread.com.cc '; $TMPURL = Explode ('. ', $url);//output Temurl see Print_r ($TMPURL); /* Result: Array ([0] => www [1] => 11 ...

Two years ago I have contacted the production of WAP website, today 3g came out now let's take a look at some small details about using PHP to write WAP sites. (1) Use " and "?>" to contain the WML program line written by PHP, in the format: ...... (program line);?> (2) Other WML tags and statement lines are declared using the Echo keyword of PHP, followed by the newline character "n" (as needed, plus multiple) for each WML line. Its basic format is: EC ...

PHP tutorial regular fetch img tag alt src width heigh attribute <?php/* Regular take picture any attribute in img tag/$word = ' <p height= ' align= ' cenetr ' >111 22< /p> <img src= "/upload/images/aaa.jpg" &n ...

In the character lookup in PHP for us to provide three functions strstr, STRISTR, Strpos, the use of their three a little different. Let's take a look at the related functions here. Syntax: String strstr (String haystack, string needle) returns the strings from needle to end in haystack. If there is no return value, that is, no needle is found, then returns false Note: This function is the size ...

The PHP shell is a shell for overwriting PHP scripts. You can use it to execute arbiritary shell commands, or browse your remote http://www.aliyun.com/zixun/aggregation/17117.html ">web file system on the server." In a way, you can replace a normal Telnet connection that can use PS to manage and maintain your Web site. PHP Shell 2.4 ...

PHP code: <? Php $ contents = "fjka; fjsa; # page # Batch [newpage] # page # composition of the document # page # And # paging code page"; / / with the original tabbed content $ cons = "fjka; fjsa; adsfasdfas yards"; & nbs ...

This article describes PHP empty string html tags Tag: HTML, HTML, HTML Category: html function clear_html_label ($ html) {$ search = array ("'<script [^>] *?>. *? </ script & g ...

The PHP date () function PHP date () functions to format the timestamp as a more readable date and time. The syntax date (format,timestamp) parameter describes the format required. Specify the format of the timestamp. Timestamp optional. Specify a timestamp. The default is the current date and time. PHP Date-What is a timestamp (Timestamp)? Timestamp is since January 1, 1970 (unlimited GMT) ...

PHP tutorials Statistics static HTML page Browse access number code//count.php $aid = isset ($_get[' aid ')? $_get[' aid ']: '; $t = isset ($_get[' t '])? $_get[' t ']: '; if (Intval ($aid)) {if ($t = = ' show ') {echo &q ...

PHP Tutorials Match URL Regular expression code//This is a PHP regular expression that gets all the links in the article content $str = ""; $reg = "<a[ss]*?" (href) s*=s* (? =["']) ((["]) (? <href>[^ "']*) 2) | (? <src>[^s>]+)) [ss]*?> "...

<?php//Save the image of the newspaper as head upload. Define (' Sd_root ', DirName (__file__). /'); @header ("expires:0"); @header ("Cache-control:private, Post-check=0, pre-check=0, max-age=0", FALSE); @header.

In PHP to generate a CAPTCHA image is quite simple, because in PHP for us to provide a graphics Gd.dll library, to enable the GD graphics library we just php.ini in the PHP-GD front; Method a $authnum = '; $ychar = "0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z&qu ...

This tutorial is a use php regular expressions to filter non-site link instance. * / php $ neirong = preg_replace ("/ <a (?! [^ <>] *? [^ <>] *?>). *? </a> / si", "", $ bbb); echo $ neirong; Method two $ str = '& ...

PHP form Processing Form instance: <html> <body> <form action= "welcome.php" method= "POST" > Name: <input type= "text" name = "Name"/> Age: <input type=&q ...

PHP tutorial The external link code function deleteemptyarray ($val) {$links = '; if (Is_array ($val)) {foreach ($val as $v =>$_v) {if (!empty ($_v[0)) &nb ...

PHP Tutorial Gets the relative Path instance code function Getrelativepath ($a, $b) {$returnPath = Array (dirname ($b));    $arrA = explode ('/', $a); &n ...