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<?php $string = '{ "123": "application/vnd.lotus-1-2-3", "3dml": "text/vnd.in3d.3dml", "3g2": "video/3gpp2", "3gp": "video/3gpp", "7z": "application/x-7z-compressed", "aab": "application/x-authorware-bin" }'; var_dump(json_decode($string, 1));
Output for 5.6.0 - 5.6.29, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(6) { [123]=> string(27) "application/vnd.lotus-1-2-3" ["3dml"]=> string(18) "text/vnd.in3d.3dml" ["3g2"]=> string(11) "video/3gpp2" ["3gp"]=> string(10) "video/3gpp" ["7z"]=> string(27) "application/x-7z-compressed" ["aab"]=> string(28) "application/x-authorware-bin" }
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(6) { [123]=> string(27) "application/vnd.lotus-1-2-3" ["3dml"]=> string(18) "text/vnd.in3d.3dml" ["3g2"]=> string(11) "video/3gpp2" ["3gp"]=> string(10) "video/3gpp" ["7z"]=> string(27) "application/x-7z-compressed" ["aab"]=> string(28) "application/x-authorware-bin" }

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