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<?php $a = "hello"; $b = "world"; //echo "{$a $b}\n"; // This causes a Parse error: syntax error, unexpected '$b' (T_VARIABLE), expecting } echo "\{$a $b}\n"; // but you can escape the sequence -- why is the escape sequence character still a part of the output?
Output for 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
\{hello world}
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/1bsAV on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5
{hello world}
preferences:
352.78 ms | 402 KiB | 457 Q