Online PHP editor | perf for H6h62

@ 2021-01-24T16:45:18Z

<?php

$size = pow(2, $length = 14);
$initial_colliding = [
    'Ex',
    'FW',
];
$initial_size = count($initial_colliding);
$start = microtime(true);

for($i=0; $i<($size);$i++) {
     $s = str_pad(base_convert($i, 10, $initial_size), $length, '0', STR_PAD_LEFT);
     $strings1[strtr($s, $initial_colliding)] = 0;
}
$end = microtime(true);
echo "Inserting $size evil elements took " . number_format($end - $start, 10) . " seconds \n";

$start = microtime(true);
$key = 'aaaaaaaaaaaaaaaaaaaaaaaaa';
for($i=0; $i<($size);$i++) {
   $s = str_pad(base_convert($i, 10, $initial_size), $length, '0', STR_PAD_LEFT);
   $evil_key_generated = strtr($s, $initial_colliding);
   $strings2[$key] = 0;
    $key++;
}
$end = microtime(true);
echo "Inserting $size good elements took " . number_format($end - $start, 10) . " seconds \n";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.0.1	0.020	1.232	23.12
8.0.0	0.033	1.276	23.13
7.4.14	0.013	1.189	22.43
7.4.13	0.026	1.233	22.47
7.4.12	0.042	1.228	22.34
7.4.11	0.023	1.141	22.33
7.4.10	0.023	1.221	22.36
7.4.9	0.013	1.144	22.44
7.4.8	0.026	1.142	22.19
7.4.7	0.016	1.157	22.24
7.4.6	0.023	1.177	22.22
7.4.5	0.010	1.207	22.42
7.4.4	0.017	1.190	22.15
7.4.3	0.043	1.412	22.44
7.4.2	0.016	1.168	22.48
7.4.1	0.016	1.184	22.48
7.4.0	0.016	1.242	22.62
7.3.26	0.039	1.162	22.41
7.3.25	0.023	1.230	22.36
7.3.24	0.020	1.144	22.35
7.3.23	0.020	1.141	22.23
7.3.22	0.026	1.117	22.50
7.3.21	0.020	1.110	22.36
7.3.20	0.033	1.195	22.59
7.3.19	0.036	1.144	22.46
7.3.18	0.016	1.165	22.21
7.3.17	0.020	1.320	22.52
7.3.16	0.039	1.245	22.43
7.3.15	0.026	1.162	22.45
7.3.14	0.023	1.230	22.35
7.3.13	0.020	1.219	22.67
7.3.12	0.016	1.323	22.25
7.3.11	0.020	1.190	22.63
7.3.10	0.030	1.154	22.41
7.3.9	0.033	1.188	22.26
7.3.8	0.010	1.229	22.46
7.3.7	0.016	1.191	22.33
7.3.6	0.023	1.226	22.52
7.3.5	0.019	1.199	22.45
7.3.4	0.010	1.269	22.42
7.3.3	0.030	1.292	22.35
7.3.2	0.036	1.218	22.24
7.3.1	0.029	1.267	22.43
7.3.0	0.050	1.188	22.50

preferences:dark modelive previewkey bindings