<?php $text = "My dog's name is Angus."; //print Angus print(substr($text, 17, 5)."<hr>");//取出子串 //切开字串 // create a demo string $line = "leon atkinson leon@clearink.com"; // loop while there are still tokens for($token = strtok($line, " "); $token != ""; $token = strtok(" ")) { print("token: $token<BR> "); } //传回字串中某字串开始处至结束的字串 $text = "Although this is string, it's not very long."; print("<hr>".strstr($text, ",")); ?>