I often need to check website lists for error codes (yesterday I’ve told you about 4XX codes). There is a simple solution written in PHP that allows to d this. You need cURL support enabled (please, let me know if I need to describe cuRL installation process on my blog) and that’s all. Here is the code: <?… Read More »
Often, especially when you copy text from WYSIWYG browser editors, the code is copied with tags you don’t need. In any way, if you’re working with text in PHP, you will often need to clean it from useless HTML code. Let’s see how can we do this. If yo need to clean the entire code, you’ll need php… Read More »
Often you need to generate a timestamp with PHP. It should represent the current date or the date in the future. It should show the date, month and year in all possible readable formats. I’ve created a list that has most often used date formats. Here it is: F j, Y F j, y F d, Y F… Read More »
When you’re working with big files, it is not ok to use such functions like file(), file_get_contents, or anything else that loads the whole file content into memory. You often need to take just one random string from a very big file. Let’s take we have a file with proxy servers and should select one of them for… Read More »
Sometimes you need to encode the whole URL, not just specific characters that are encoded with urlencode(). You might need to represent your query string or anything else as shown at W3C School. There is quite a simple solution in PHP: <? $string=”some-string”; for ($i=0; $i<strlen($url); $i++) { $mass[$i]=”%”.dechex(ord($url{$i})); } $encoded_string=implode(“”, $mass); ?> In the sample provided the… Read More »
Sometimes you need to run several copies of one script at the same time. The easiest method is to do something like this: for($i=0;$i<10;$i++) { system (“/usr/local/bin/php go.php $i > start.log &”); echo “thread $i started”; } ?> Not very elegant, but it works, if you are allowed to use PHP’s system() function. I will tell you how… Read More »
Sometimes you need to use the variables passed to script avoiding usage of superglobal arrays. If you are on shared hosting, you won’t have access to your php.ini file and won’t be able to change register_globals setting. A simple function will help you to do this. <? /** * function to emulate the register_globals setting in PHP *… Read More »
Iconv functions are often used in PHP when you have problems with character encoding. When you have non-latin chars in the text you work with, you might have problems with storing them, writing into database, etc. It becomes useful when you use several different encodings and when you need to store or output some text into a single… Read More »