1--TEST-- 2stristr() function 3--FILE-- 4<?php 5 var_dump(stristr("tEsT sTrInG", "tEsT")); 6 var_dump(stristr("tEsT sTrInG", "stRiNg")); 7 var_dump(stristr("tEsT sTrInG", "stRiN")); 8 var_dump(stristr("tEsT sTrInG", "t S")); 9 var_dump(stristr("tEsT sTrInG", "g")); 10 var_dump(md5(stristr("te".chr(0)."st", chr(0)))); 11 var_dump(stristr("", "")); 12 var_dump(stristr("a", "")); 13 var_dump(stristr("", "a")); 14 var_dump(md5(stristr("\\\\a\\", "\\a"))); 15 var_dump(stristr("tEsT sTrInG", " ")); 16?> 17--EXPECT-- 18string(11) "tEsT sTrInG" 19string(6) "sTrInG" 20string(6) "sTrInG" 21string(8) "T sTrInG" 22string(1) "G" 23string(32) "7272696018bdeb2c9a3f8d01fc2a9273" 24string(0) "" 25string(1) "a" 26bool(false) 27string(32) "6ec19f52f0766c463f3bb240f4396913" 28string(7) " sTrInG" 29