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<?php $txt = 'Lot99. Is it 1+3 or 5 or 6.53'; var_export( preg_split('~(?:\d+\.\d+|\w+|\S)\K *~', $txt, 0, PREG_SPLIT_NO_EMPTY) );
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.4, 8.3.6 - 8.3.29, 8.4.1 - 8.4.14, 8.4.16 - 8.4.17, 8.5.0 - 8.5.2
array ( 0 => 'Lot99', 1 => '.', 2 => 'Is', 3 => 'it', 4 => '1', 5 => '+', 6 => '3', 7 => 'or', 8 => '5', 9 => 'or', 10 => '6.53', )
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 => 'Lot99', 1 => '.', 2 => 'Is', 3 => 'it', 4 => '1', 5 => '+', 6 => '3', 7 => 'or', 8 => '5', 9 => 'or', 10 => '6.53', )

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