PHP5 互換に修正 #621

Job	Run time
Run on Linux (test:e2e, test/front_login)	3m 42s
Installer test (pgsql, 5.4)	3m 59s
Run on Linux (test:e2e, test/front_guest)	3m 19s
Installer test (pgsql, 5.5)	3m 33s
Run on Linux (test:e2e, test/admin)	3m 47s
Run on Linux (test:e2e-extends, test/front_login)	3m 17s
Installer test (pgsql, 5.6)	3m 14s
Run on Linux (test:e2e-extends, test/front_guest)	3m 2s
Installer test (pgsql, 7.0)	3m 40s
Run on Linux (test:e2e-extends, test/admin)	3m 5s
Installer test (pgsql, 7.1)	3m 27s
Installer test (pgsql, 7.2)	3m 44s
Installer test (pgsql, 7.3)	3m 22s
Installer test (pgsql, 7.4)	3m 2s
Installer test (pgsql, 8.0)	3m 10s
Installer test (pgsql, 8.1)	3m 12s
Installer test (pgsql, 8.2)	3m 11s
Installer test (pgsql, 8.3)	3m 8s
Installer test (mysql, 5.4)	4m 2s
Installer test (mysql, 5.5)	3m 53s
Installer test (mysql, 5.6)	3m 25s
Installer test (mysql, 7.0)	3m 17s
Installer test (mysql, 7.1)	3m 36s
Installer test (mysql, 7.2)	3m 24s
Installer test (mysql, 7.3)	2m 59s
Installer test (mysql, 7.4)	2m 59s
Installer test (mysql, 8.0)	3m 39s
Installer test (mysql, 8.1)	3m 19s
Installer test (mysql, 8.2)	3m 17s
Installer test (mysql, 8.3)	3m 17s
	1h 42m 1s

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