小林--2012

摘要： <?php$text='This is a test';echostrlen($text);// 14echosubstr_count($text,'is');// 2// the string is reduced to 's is a test', so it prints 1echosubstr_count($text,'is',3);// the text is reduced to 's i', so it prints 0echosubstr_count($text,'is',3, 阅读全文