프로그래밍 꿀팁모음

array_filter, Remove empty elements from PHP array Example 1)Remove empty string elementsElements made up of white space are not removed. $arr = array("lemon", "", "", "\t\n", "orange");$reduced_arr = array_filter($arr);print_r($reduced_arr); # Array# (# [0] => lemon# [3] => # # [4] => orange# ) Example 2)trim() removes whitespace from an empty string $arr = array("lemon", "", "", "\t\n", "orang..

Let's look at how to go to the previous page in PHP.There is, of course, a way to go back to the previous page in JavaScript.JavaScript has a history built-in object, and there's a back() or go() function that saves the previous page information.But is it possible to go to the previous page in PHP and server language?This is also possible and you can go back using the information on the previous..

Is there any way to check the type of data, variables, etc. in PHP? Below you will learn how to check the data type. ※ Learn about PHP data types The simplest way to do this is to use the gettype() function. gettype() returns the type of data with a built-in function. First, php has the following types. unknown typeNULLstringintegerarrayobjectbollean... There are various types as above. See belo..

Arrays of data types can have multiple values at the same time.So there are many functions that manipulate array type data.What if you want to have only one of the many data values in the array that do not have duplicate values in php? ※ Creating an array with only PHP different values You can do it by hand, but what if the array has 10 million values? This must be impossible ... You can also us..

If you need to use Amazon ASSOCIATES affiliate program or import API information, you can use as follows. - amazon.aff.php How to use include_once('/amazon.aff.php'); $amazon = new AmazonAPI("STORE_ID (affiliate-program)", "MERCHANT_ID", "SECRET CODE");$item = $amazon->item_lookup("ASIN")->get_item_data();

$categoryName = "짜짱, 짬뽕, 라면"; $searchName = "짬뽕"; if(strpos($categoryName, $searchName) !== false) { echo "포함되었을때"; } else { echo "없을대"; } 매우 간단하게 PHP 로 문자열 포함 검사를 할 수 있습니다.

1. 정규식을 통한 제거$text = preg_replace('/\r\n|\r|\n/','',$text); 2. 문자열 함수사용으로 제거$text = str_replace(array("\r\n","\r","\n"),'',$text); 또는$text = strtr($text,array("\r\n"=>'',"\r"=>'',"\n"=>'')); html 태그 제거$content = preg_replace("(\]+)\>)", "", $content); textarea 제거$content = preg_replace("!!is","[textarea]",$content);$content = preg_replace("!!is","[/textarea]",$content); script 제거$str=preg_replac..

$string = preg_replace("/[ #\&\+\-%@=\/\\\:;,\.'\"\^`~\_|\!\?\*$#()\[\]\{\}]/i", "", $string); preg_repalce 를 사용하면 정말 간단하게 특수문자를 제거할 수 있습니다.

PHP 에서 직접 SQL 파일을 IMPORT 하고 싶을때가 있죠? SQL 파일을 바로 복원하는 방법은 아래와 같습니다.