![]() Laravel 5 hasMany relationship on two columns.How can registered user can create a new article from joomla front-end in 2.5?.How do i force Joomla to update the user session.Using JFactory::getDbo()->insertObject with on duplicate key update.Add Mootools 1.3 element to document body.How to correctly code a Joomla MVC component to perform jQuery AJAX GETS/POSTS?.Joomla 3 Global Configuration missing css.How do I mass delete users from Joomla? My website has been attacked by spambots and I have over 40,000 registered users but only 1 active user.Is there a memcached no igbinary support work around for CodeIgniter.CodeIgniter params are not passing to library?.Cannot execute multiple update queries in one statement.how to write htaccess file, to change URL.codeigniter html email changing characters.CodeIgniter ajax upload image (ajax works, not CodeIgniter).1615 Prepared statement needs to be re-prepared in codeigniter.Codeigniter Class 'REST_Controller' not found.Not getting value in $_SERVER from SetEnv variable in htaccess. ![]() Unable to update database with ajax in codeigniter.The solution here is to use trim() on the resulting string.Most answer related to your questions codeigniter In such cases, there will be one space character present on both sides even after using preg_replace(). The only problem now is that the main string might contain multiple whitespace characters at both ends. In the above example, the + after \s means that you want to replace one or more whitespace characters with a single space. $stripped = preg_replace('/\s+/', ' ', $sentence) This is different than removing all the spaces so you will have to make small changes in the regular expression and the preg_replace() function. Most of the times when you decide to remove extra whitespace characters from a string, you would want to replace two or more of them with a single space character. $stripped = preg_replace('/\s/', '', $sentence) Replace multiple whitespace characters with a single space The special \s character in a regular expression is used to represent all whitespace characters that you removed by trim(), ltrim() and rtrim(). In such cases, using the str_replace() function won’t cut it. The whitespace can consist of more than just space characters. $stripped = str_replace(' ', '', $sentence) If you just want to remove all the whitespace characters irrespective of where they occur in the string, you should use str_replace() to replace all their occurrences with a blank string. The trimming function will be ineffective against it. Some times, the strings you are working with will have unwanted whitespace in the middle and in the beginning as well as in the end. These functions will remove the following whitespace characters: If you want to remove whitespace only from the beginning of a string, you should use the ltrim() function in PHP. If you want to remove whitespace only from the end of a string, you should use the rtrim() function in PHP. If you want to remove whitespace from both ends of a string, you should use the trim() function instead of using both ltrim() and rtrim(). Remove whitespace from the beginning or end of a String ![]() Similarly, you might be planning on stripping all the whitespace from either the left or the right end of a string. For example, you might want to replace multiple spaces with a single space or you might want to get rid of all the whitespace in a string. Many times, the strings have extra spaces that need to be removed. ![]()
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