3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
{"id":5273,"parent":0,"name":"John Doe","children":[{"id":6032,"parent":5273,"name":"Sally Smith","children":[{"id":6034,"parent":6032,"name":"Mike Jones","children":[{"id":6035,"parent":6034,"name":"Jason Williams","children":[]}]}]},{"id":6036,"parent":5273,"name":"Sara Johnson","children":[]},{"id":6037,"parent":5273,"name":"Dave Wilson","children":[{"id":6038,"parent":6037,"name":"Amy Martin","children":[]}]}]}
preferences:
191.86 ms | 414 KiB | 5 Q