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<?php // Predict this output. I doubt you'll get it correct for any version of PHP you are working on. var_dump( '9223372036854775807' == '9223372036854775808'); var_dump( '=' + '9223372036854775807' == '=' + '9223372036854775808'); var_dump( '=' . '9223372036854775807' == '=' . '9223372036854775808'); ?>
Output for 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(false) Fatal error: Uncaught TypeError: Unsupported operand types: string + string in /in/bvfrH:7 Stack trace: #0 {main} thrown in /in/bvfrH on line 7
Process exited with code 255.
Output for 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
bool(false) Warning: A non-numeric value encountered in /in/bvfrH on line 7 Warning: A non-numeric value encountered in /in/bvfrH on line 7 bool(true) bool(false)
Output for 5.4.4 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.31
bool(false) bool(true) bool(false)
Output for 4.3.1 - 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 - 5.4.3
bool(true) bool(true) bool(false)
Output for 4.3.0

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