3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'Hello, I don`t know who I "am" but I know who you are, but I don`t know where I am'; var_export(array_count_values(str_word_count($string, 1, '`')));
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
array ( 'Hello' => 1, 'I' => 5, 'don`t' => 2, 'know' => 3, 'who' => 2, 'am' => 2, 'but' => 2, 'you' => 1, 'are' => 1, 'where' => 1, )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
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160.82 ms | 407 KiB | 5 Q