3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 7.3.0 - 7.3.21, 7.4.0 - 7.4.9, 8.0.30, 8.2.10
string(3) "64M" mem @ /in/BHqWd 16: 0.37 MB (2.00 MB; peak: 0.41 MB) mem @ /in/BHqWd 18: 9.91 MB (11.54 MB; peak: 9.91 MB) end 9999999
Output for 7.2.0 - 7.2.33
string(3) "64M" mem @ /in/BHqWd 16: 0.37 MB (2.00 MB; peak: 0.40 MB) mem @ /in/BHqWd 18: 9.91 MB (11.54 MB; peak: 9.91 MB) end 9999999

preferences:
63.76 ms | 411 KiB | 5 Q