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<?php $string = '$£%wow!😮'; echo 'No mb: ' . strlen($string) . PHP_EOL; echo 'With mb: ' . mb_strlen($string) . PHP_EOL; $chrArray = preg_split('//u', $string, -1, PREG_SPLIT_NO_EMPTY); foreach ($chrArray as $chr) { echo $chr . ' ' . strlen($chr) . PHP_EOL; }
Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
No mb: 12 With mb: 8 $ 1 £ 2 % 1 w 1 o 1 w 1 ! 1 😮 4
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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