3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(" 2" == " 2"); var_dump(" 2 "+0 == " 2 "); var_dump(" 2 " == 2); // string headed by number var_dump(" 2 "+0 == " 2");
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.3.32 - 7.3.33, 7.4.26, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
bool(true) bool(true) bool(true) bool(true)
Output for 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
bool(true) Notice: A non well formed numeric value encountered in /in/jhh5H on line 4 bool(true) bool(true) Notice: A non well formed numeric value encountered in /in/jhh5H on line 8 bool(true)
preferences:
207.71 ms | 403 KiB | 347 Q