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<?php $expression = '(1*2)/(3*4)*100+-10'; var_export( preg_split( '~(-?\d+|[()*/+-])~', $expression, 0, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE ) );
Output for 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 - 8.3.4, 8.3.6 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
array ( 0 => '(', 1 => '1', 2 => '*', 3 => '2', 4 => ')', 5 => '/', 6 => '(', 7 => '3', 8 => '*', 9 => '4', 10 => ')', 11 => '*', 12 => '100', 13 => '+', 14 => '-10', )
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.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 0 => '(', 1 => '1', 2 => '*', 3 => '2', 4 => ')', 5 => '/', 6 => '(', 7 => '3', 8 => '*', 9 => '4', 10 => ')', 11 => '*', 12 => '100', 13 => '+', 14 => '-10', )

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