Several useful PHP string filtering and conversion function codes_PHP tutorial

nl2br();// n to

addslashes(); stripslashes();//When operating on the database, escape special characters

chop();//Remove the spaces on the right side of the string
trim();//Remove all spaces in the string
ltrim();//Remove the spaces on the left side of the string

htmlspecialchars();//Convert '$','"', '' are corresponding html entities
htmlentities();//Convert all html tags to corresponding html entities

array explode(string separator, string str);// Split string
string implode(string separator, array arr);//Connect string

strtoupper(); strtolower();//Convert case
ucfirst();//Only Convert the first character to uppercase
ucwords();//Convert the first letter of each word to uppercase

http://www.bkjia.com/PHPjc/325289.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/325289.htmlTechArticlenl2br();// n to addslashes(); stripslashes();//When operating on the database, transfer special characters chop();//Remove the spaces on the right side of the string trim();//Remove all spaces in the string ltrim();//Remove...