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<?php // 空 XML を bool にキャストすると false $falsy = new SimpleXMLElement('<bool></bool>'); var_dump((bool)$falsy);// false // 中身のある XML を bool にキャストすると true $truthy = new SimpleXMLElement('<bool><true/></bool>'); var_dump((bool)$truthy);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.4, 8.3.6 - 8.3.9
bool(false) bool(true)
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 bool(false) bool(true)
preferences:
156.55 ms | 403 KiB | 163 Q