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<?php var_dump(" 4"," 4"); var_dump(" 4 "," 4 ");
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(3) " 4" string(5) " 4" string(4) " 4 " string(6) " 4 "