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run code in 300+ PHP versions simultaneously
<?php $testString = 'test'; $stream = fopen('php://memory','r+'); fwrite($stream, $testString); rewind($stream); $filter = stream_filter_append($stream, 'convert.base64-encode'); echo "memoryStream = " . stream_get_contents($stream).PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
memoryStream = dGVzdA==

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