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@ 2023-03-14T22:53:30Z

<?php

function createInstance() {
    return eval('return new class {};');
}

$startMemory = memory_get_peak_usage();
for ($i = 0; $i < 10000; $i++) {
    createInstance();
}
var_dump((memory_get_peak_usage() - $startMemory) / 1024**2); // MB

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
memory_get_peak_usage: documentation ( source)

preferences:dark modelive preview

27.66 ms | 402 KiB | 5 Q