PHP Tutorials

With type conversion, you can convert the value of one variable to another type. This conversion is the same as the C language type conversion. Simply insert the temporary data type that you want to convert in parentheses before the variable you

By using this code snippet, you can easily extract all the links on any Web page. $html = file_get_contents (' http://www.example.com '); $dom = new DOMDocument (); @ $dom->loadhtml ($html); Grab all the

Class EMP { var $name; var $address; var $dept; function Assign_info ($n, $a, $d) { $this->name= $n; $this->state= $a; $this->dept= $d; } function Display_info () { Echo ("

function Send_mail ($title, $content, $from, $to, $charset = ' GBK ', $attachment = ') { Include '/class/phpmail.class.php '; Baidu two down Header (' content-type:text/html; charset= '. $charset); $mail = new Phpmailer (); $

$i = Imagecreatefromjpeg ("Image.jpg"); for ($x =0; $x for ($y =0; $y $rgb = Imagecolorat ($i, $x, $y); $r = ($rgb >>) & 0xFF; $g = ($rgb >> & 0xFF; $b = $rgb & 0xFF; $rTotal + =

function Auto_save_image ($body) { $img _array = Explode (' & ', $body); /* $img _array = array (); Preg_match_all ("/(SRC) =[\" |\ ' |] {0,} (http:\/\/(. *) \. (gif|jpg|jpeg|bmp|png)) [\"|\'| ] {0,}/isu ", $body, $img

Header ("Content-type:image/png"); $num = $_get[' num ']; $imagewidth = 60; $imageheight = 18; Srand (Microtime () * 100000); $numimage = Imagecreate ($imagewidth, $imageheight); Imagecolorallocate ($numimage, 183,

$query = "SELECT count (IP) as count_ip from tb_count04"; Querying the total number of IP accesses in the database $result =mysql_query ($query); $countes =mysql_result ($result, 0, ' count_ip '); Creating a canvas

function Scale_dimensions_within_limits ($w, $h, $max _w, $max _h) { $w is the width of the current rectangle $h is the height of the current rectangle $max _w is the maximum width a image can be sized $max _h is the maximum

function Create_dir ($path, $mode) { if (Is_dir ($path)) {//Determine if the directory exists no, there is no creation echo "Directory". $path. "' already exists"; } Else {//does not exist create $re =mkdir (

The PHP form submits the page check box after the name to add [], so that the receiving page to get the correct results. The form is submitted with an array, and then the specific Vaule value of the form is obtained by accessing the array elements.

function Getfirstchar ($s 0) { $fchar = Ord (substr ($s 0, 0, 1)); if ($fchar >= ord ("a") and $fchar = ord ("a") and $fchar $s = Iconv ("UTF-8", "gb2312", $s 0); $ASC = Ord ($s {0}) * n + ord ($s Beckham)-65536; if ($asc >=

function Show_page ($count, $page, $page _size) { $page _count = ceil ($count/$page _size); Calculate the total number of pages $init = 1; $page _len=7; $max _p= $page _count; $pages = $page _count; Judging the

Set_time_limit (0); Supports all file types URL here: $url = ' http://somsite.com/some_video.flv '; $pi = PathInfo ($url); $ext = $pi [' extension ']; $name = $pi [' filename ']; Create a new CURL resource

Handling code: Header (' Content-type:text/html;charset=utf-8 '); Ready to receive /* echo ' filename: '. $_files[' userfile ' [' name ']; echo ' File size: '. $_files[' userfile ' [' Size ']; Echo ' ERROR:

PHP (provided that curl is installed): $ch = Curl_init (); curl_setopt ($ch, Curlopt_url, "http://www.xxx/"); curl_setopt ($ch, Curlopt_referer, "http://www.xxx/"); Curl_exec ($ch); Curl_close ($ch); PHP (does not

/** * * Chinese string interception * @param string $string * @param int $sublen * @param int $start * @param string $code */ function Substr_zh ($string, $sublen, $start = 0, $code = ' UTF-8 ') { if

} } } Class Calendarform { protected $year; protected $month; protected $day; protected $weekend; protected $currentdate; protected $dayofmonth; protected $day _count;

/** * Full-width characters converted to half-width characters */ function Make_semiangle ($STR) { $arr = Array (' 0 ' = ' 0 ', ' 1 ' = ' 1 ', ' 2 ' = ' 2 ', ' 3 ' = ' 3 ', ' 4 ' = ' 4 ', ' 5 ' = ' 5 ', ' 6 ' = ' 6 ', '

PHP7 was officially released in 201 May-December, with a much higher performance than the 5.6 release, so install PHP7 try it out in php.ini configurationZend_extension=opcache.soOpcache.enable=1Opcache.enable_cli=1Sure enough, performance has