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<?php $d = 0.30; do { $d = bcsub($d, 0.01, 4); var_dump($d); } while ($d >= 0.00);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
string(6) "0.2900" string(6) "0.2800" string(6) "0.2700" string(6) "0.2600" string(6) "0.2500" string(6) "0.2400" string(6) "0.2300" string(6) "0.2200" string(6) "0.2100" string(6) "0.2000" string(6) "0.1900" string(6) "0.1800" string(6) "0.1700" string(6) "0.1600" string(6) "0.1500" string(6) "0.1400" string(6) "0.1300" string(6) "0.1200" string(6) "0.1100" string(6) "0.1000" string(6) "0.0900" string(6) "0.0800" string(6) "0.0700" string(6) "0.0600" string(6) "0.0500" string(6) "0.0400" string(6) "0.0300" string(6) "0.0200" string(6) "0.0100" string(6) "0.0000" string(7) "-0.0100"
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 string(6) "0.2900" string(6) "0.2800" string(6) "0.2700" string(6) "0.2600" string(6) "0.2500" string(6) "0.2400" string(6) "0.2300" string(6) "0.2200" string(6) "0.2100" string(6) "0.2000" string(6) "0.1900" string(6) "0.1800" string(6) "0.1700" string(6) "0.1600" string(6) "0.1500" string(6) "0.1400" string(6) "0.1300" string(6) "0.1200" string(6) "0.1100" string(6) "0.1000" string(6) "0.0900" string(6) "0.0800" string(6) "0.0700" string(6) "0.0600" string(6) "0.0500" string(6) "0.0400" string(6) "0.0300" string(6) "0.0200" string(6) "0.0100" string(6) "0.0000" string(7) "-0.0100"
Output for 7.3.32 - 7.3.33, 7.4.33, 8.0.13
Fatal error: Uncaught Error: Call to undefined function bcsub() in /in/P4cNk:6 Stack trace: #0 {main} thrown in /in/P4cNk on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Fatal error: Call to undefined function bcsub() in /in/P4cNk on line 6
Process exited with code 255.

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