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<?php $a = array('a' => 'a_string', 'b' => 'dsfsfd', 'c' => array('as', 'df', 'df')); var_dump(http_build_query($a));
Output for 5.1.3 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(55) "a=a_string&b=dsfsfd&c%5B0%5D=as&c%5B1%5D=df&c%5B2%5D=df"
Output for 5.0.0 - 5.1.2
string(43) "a=a_string&b=dsfsfd&c[0]=as&c[1]=df&c[2]=df"
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: http_build_query() in /in/AX1g0 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: http_build_query() in /in/AX1g0 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: http_build_query() in /in/AX1g0 on line 5