replace php type boolean with bool #173

Job	Run time
code-style-and-static-analysis	2m 55s
Test Suite (7.4, sqlite, 5-min)	49s
Test Suite (7.4, sqlite, 5-max)	1m 18s
Test Suite (7.4, mysql, 5-min)	1m 13s
Test Suite (7.4, mysql, 5-max)	1m 37s
Test Suite (7.4, pgsql, 5-min)	1m 5s
Test Suite (7.4, pgsql, 5-max)	1m 31s
Test Suite (7.4, agnostic, 5-min)	28s
Test Suite (7.4, agnostic, 5-max)	59s
Test Suite (8.2, sqlite, 5-min)	47s
Test Suite (8.2, sqlite, 5-max)	1m 30s
Test Suite (8.2, sqlite, 6-min)	47s
Test Suite (8.2, sqlite, 6-max)	45s
Test Suite (8.2, sqlite, 7-min)	45s
Test Suite (8.2, sqlite, 7-max)	55s
Test Suite (8.2, mysql, 5-min)	1m 8s
Test Suite (8.2, mysql, 5-max)	1m 8s
Test Suite (8.2, mysql, 6-min)	1m 12s
Test Suite (8.2, mysql, 6-max)	1m 20s
Test Suite (8.2, mysql, 7-min)	1m 9s
Test Suite (8.2, mysql, 7-max)	1m 19s
Test Suite (8.2, pgsql, 5-min)	1m 10s
Test Suite (8.2, pgsql, 5-max)	1m 5s
Test Suite (8.2, pgsql, 6-min)	1m 5s
Test Suite (8.2, pgsql, 6-max)	1m 3s
Test Suite (8.2, pgsql, 7-min)	1m 49s
Test Suite (8.2, pgsql, 7-max)	1m 10s
Test Suite (8.2, agnostic, 5-min)	24s
Test Suite (8.2, agnostic, 5-max)	25s
Test Suite (8.2, agnostic, 6-min)	23s
Test Suite (8.2, agnostic, 6-max)	32s
Test Suite (8.2, agnostic, 7-min)	33s
Test Suite (8.2, agnostic, 7-max)	24s
	34m 43s

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