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<?php $var = "laruence"; $var_dup = $var; debug_zval_dump($var_dup); unset($var); debug_zval_dump($var_dup);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
string(8) "laruence" interned string(8) "laruence" interned
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(8) "laruence" interned string(8) "laruence" interned
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
string(8) "laruence" refcount(1) string(8) "laruence" refcount(1)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
string(8) "laruence" refcount(3) string(8) "laruence" refcount(2)
preferences:
266.39 ms | 402 KiB | 329 Q