1--TEST-- 2Concatenating many small strings should not slowdown allocations 3--SKIPIF-- 4<?php 5if (PHP_DEBUG) { die ("skip debug version is slow"); } 6if (getenv('SKIP_PERF_SENSITIVE')) die("skip performance sensitive test"); 7?> 8--FILE-- 9<?php 10 11$time = microtime(TRUE); 12 13/* This might vary on Linux/Windows, so the worst case and also count in slow machines. */ 14$t_max = 1.0; 15 16$datas = array_fill(0, 220000, [ 17 '000.000.000.000', 18 '000.255.255.255', 19 '保留地址', 20 '保留地址', 21 '保留地址', 22 '保留地址', 23 '保留地址', 24 '保留地址', 25]); 26 27$time = microtime(TRUE); 28$texts = ''; 29foreach ($datas AS $data) 30{ 31 $texts .= implode("\t", $data) . "\r\n"; 32} 33 34$t = microtime(TRUE) - $time; 35var_dump($t < $t_max); 36 37?> 38+++DONE+++ 39--EXPECT-- 40bool(true) 41+++DONE+++ 42
