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<?php class Aparent { protected $is_something; public function __construct() { $this->is_something = FALSE; $this->thing(); } public function thing() { if ($this->is_something) { print "Aparent.thing() reports is_something as TRUE\n"; } else { print "Aparent.thing() reports is_something as FALSE\n"; } } } class Achild extends Aparent { public function thing() { print "Achild before changing is_something\n"; if ($this->is_something) { print "Achild.thing() reports is_something as TRUE\n"; } else { print "Achild.thing() reports is_something as FALSE\n"; } $this->is_something = TRUE; print "Achild after changing is_something\n"; if ($this->is_something) { print "Achild.thing() reports is_something as TRUE\n"; } else { print "Achild.thing() reports is_something as FALSE\n"; } print "Achild calling parent::thing()\n"; parent::thing(); } } $o = new Achild();
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Achild before changing is_something Achild.thing() reports is_something as FALSE Achild after changing is_something Achild.thing() reports is_something as TRUE Achild calling parent::thing() Aparent.thing() reports is_something as 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 Achild before changing is_something Achild.thing() reports is_something as FALSE Achild after changing is_something Achild.thing() reports is_something as TRUE Achild calling parent::thing() Aparent.thing() reports is_something as TRUE
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/csJTn on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/csJTn on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/csJTn on line 4
Process exited with code 255.

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