1--TEST-- 2Test trim() function : basic functionality 3--FILE-- 4<?php 5 6/* Prototype : string trim ( string $str [, string $charlist ] ) 7 * Description: Strip whitespace (or other characters) from the beginning and end of a string. 8 * Source code: ext/standard/string.c 9*/ 10 11echo "*** Testing trim() : basic functionality ***\n"; 12 13$text = " \t\r\n\0\x0B ---These are a few words--- \t\r\n\0\x0B "; 14$hello = "!===Hello World===!"; 15$binary = "\x0A\x0DExample string\x0A\x0D"; 16 17echo "\n-- Trim string with all white space characters --\n"; 18var_dump(trim($text)); 19 20echo "\n-- Trim non-whitespace from a string --\n"; 21var_dump(trim($hello, "=!")); 22 23echo "\n-- Trim some non-white space characters from a string --\n"; 24var_dump(trim($hello, "Hdle")); 25 26echo "\n-- Trim the ASCII control characters at the beginning of a string --\n"; 27var_dump(trim($binary, "\x00..\x1F")); 28 29?> 30===DONE=== 31--EXPECT-- 32*** Testing trim() : basic functionality *** 33 34-- Trim string with all white space characters -- 35string(27) "---These are a few words---" 36 37-- Trim non-whitespace from a string -- 38string(11) "Hello World" 39 40-- Trim some non-white space characters from a string -- 41string(19) "!===Hello World===!" 42 43-- Trim the ASCII control characters at the beginning of a string -- 44string(14) "Example string" 45===DONE=== 46
