Online PHP editor | output for cUBXe

@ 2012-12-04T14:41:30Z

<?php

$a = "foobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisoutfoobarbizbazbuztestingthisout";
echo memory_get_usage() . "\n";

$c = mb_substr($a, 0, strlen($a) - 1);
echo memory_get_usage() . "\n";

Output for 7.4.0 - 7.4.1: 387504 388432
Output for 7.3.0 - 7.3.13: 387424 388352
Output for 7.2.0 - 7.2.26: 383576 384504
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33: 346936 347864
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: 216984 218064
Output for 5.4.10 - 5.4.45: 217504 218584
Output for 5.4.0 - 5.4.9: 216976 218056
Output for 5.3.11 - 5.3.29: 621560 622632
Output for 5.3.0 - 5.3.10: 621256 622328
Output for 5.2.10 - 5.2.17: 79736 80800
Output for 5.2.7 - 5.2.9: 80168 81240
Output for 5.2.3 - 5.2.6: 80488 81560
Output for 5.2.1 - 5.2.2: 78384 79456
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0: Fatal error: Call to undefined function memory_get_usage() in /in/cUBXe on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: memory_get_usage() in /in/cUBXe on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: Fatal error: Call to undefined function: memory_get_usage() in /in/cUBXe on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: memory_get_usage() in /in/cUBXe on line 4

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