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|
--TEST--
Concatenating many small strings should not slowdown allocations
--SKIPIF--
<?php if (PHP_DEBUG) { die ("skip debug version is slow"); } ?>
--INI--
memory_limit=256m
--FILE--
<?php
/* To note is that memory usage can vary depending on whether opcache is on. The actual
measuring that matters is timing here. */
$time = microtime(TRUE);
/* This might vary on Linux/Windows, so the worst case and also count in slow machines. */
$t0_max = 0.3;
$t1_max = 1.0;
$datas = [];
for ($i = 0; $i < 220000; $i++)
{
$datas[] = [
'000.000.000.000',
'000.255.255.255',
'保留地址',
'保留地址',
'保留地址',
'保留地址',
'保留地址',
'保留地址',
];
}
$t0 = microtime(TRUE) - $time;
var_dump($t0 < $t0_max);
$time = microtime(TRUE);
$texts = '';
foreach ($datas AS $data)
{
$texts .= implode("\t", $data) . "\r\n";
}
$t1 = microtime(TRUE) - $time;
var_dump($t1 < $t1_max);
?>
+++DONE+++
--EXPECT--
bool(true)
bool(true)
+++DONE+++
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