Common PHP function code snippets that can be used directly (21 ~ 25)-php Tutorial

Common PHP function code snippets that can be used directly (21 ~ 25) Source: jquery tutorial? -? Www. jq-school.comShow.aspx? PHP: common PHP function code snippets that can be used directly by HypertextPre (21 ~ 25)

Source: jquery tutorial? -? Http://www.jq-school.com/Show.aspx? Id = 330

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Initially thought to collectPHPThe skills may be difficult. now I have collected 25 more without knowing it. In fact, PHP is the abbreviation of Personal Home Page, which has been officially renamed as "PHP: Hypertext Preprocessor ", note that it is not the abbreviation of "Hypertext Preprocessor". This method of putting the name into the definition is called recursive abbreviation.

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PHPFounded in 1994 by Rasmus Lerdorf, Rasmus Lerdorf is a simple program written in Perl to maintain personal webpages. These tools are used to show Rasmus Lerdorf's resume and Count Web traffic.

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Later, I re-wrote the program in C language, including accessing the database. he integrated these programs with some form interpreters called PHP/FI, which can be connected to the database, generate a simple dynamic web page program. if the front-end users are learning to develop in the background, they can choose PHP.

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Let's take a look at the previously shared code snippet.

1. common PHP function code snippets (1 ~ 5)

2. common PHP function code snippets (6 ~ 10)

3. common PHP function code snippets (11 ~ 15)

4. common PHP function code snippets (16 ~ 20)

Today is Article 5th, it mainly provides functions such as obtaining the complete url address of the current page, sorting by two-dimensional arrays, obtaining the time of all weeks in which a period of time is located, converting the character content to binary, and converting the binary content to the character content, that is, the 5 practical code snippets from 21st to 25.JqueryMembers of the school group andPHPDeveloped netizens improve development efficiency.

21. PHP functions to obtain the complete url of the current page

function get_url(){    $url = (isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443') ? 'https://' : 'http://';    $url .= $_SERVER['HTTP_HOST'];    $url .= isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : urlencode($_SERVER['PHP_SELF']) . '?' . urlencode($_SERVER['QUERY_STRING']);    return $url;}

22. PHP universal method for sorting two-dimensional arrays

function array_sort($arr,$keys,$type='asc'){ $keysvalue = $new_array = array();foreach ($arr as $k=>$v){$keysvalue[$k] = $v[$keys];}if($type == 'asc'){asort($keysvalue);}else{arsort($keysvalue);}reset($keysvalue);foreach ($keysvalue as $k=>$v){$new_array[$k] = $arr[$k];}return $new_array; } 

23. PHP implementation obtains the time of all weeks in a period of time

Function getWeek ($ startdate, $ enddate) {// The parameter cannot be blank if (! Empty ($ startdate )&&! Empty ($ enddate) {// Convert two dates to the timestamp $ startdate = strtotime ($ startdate); $ enddate = strtotime ($ enddate ); // The start date cannot be greater than the end date if ($ startdate <= $ enddate) {$ end_date = strtotime ("next Monday", $ enddate); if (date ("w ", $ startdate) = 1) {$ start_date = $ startdate;} else {$ start_date = strtotime ("last Monday", $ startdate );} // calculate the time difference between weeks $ countweek = ($ end_date-$ start_date)/(7*24*3600); for ($ I = 0; $ I <$ countweek; $ I ++) {$ sd = date ("Y-m-d", $ start_date); $ ed = strtotime ("+ 6 days", $ start_date ); $ eed = date ("Y-m-d", $ ed); $ arr [] = array ($ sd, $ eed ); $ start_date = strtotime ("+ 1 day", $ ed) ;}return $ arr ;}}}

24. PHP converts character content to binary
Function StrToBin ($ str ){

Function StrToBin ($ str) {// 1. list each character $ arr = preg_split ('/(?
 


25. PHP converts binary into character content
Function BinToStr ($ str ){
function BinToStr($str){    $arr = explode(' ', $str);    foreach($arr as &$v){        $v = pack("H".strlen(base_convert($v, 2, 16)), base_convert($v, 2, 16));    }    return join('', $arr);}
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