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@ 2021-10-21T18:54:49Z

<?php

$file = new \SplTempFileObject();

for ($i = 0; $i < 100; $i++) {
    $file->fwrite("Foo\n");
}

$file->seek(50);

var_dump($file->fgets());
var_dump($file->key());

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive preview

28.14 ms | 402 KiB | 5 Q