PHPArray learning Notes (1)

PHPArray learning records (1) some methods about arrays $ test_arr = array ('name' = & gt; 'test', 2 = & gt; 2, 'color' = & gt; "red"); echo 'Learning records using the var_dump method PHP Array (1)
Array methods

$ Test_arr = array ('name' => 'test', 2 => 2, 'color' => "red"); echo 'use the var_dump method to output the array :'; var_dump ($ test_arr); echo'

Use the print_r method to output an array: '; print_r ($ test_arr); if (is_array ($ test_arr) {echo"

$ Test_arr is an array ";} echo"

Array_push add a project to the array "; array_push ($ test_arr, array ('good ', 'Nice'), 'Three ', 'Four'); var_dump ($ test_arr); echo"

Array_pop usage "; array_pop ($ test_arr); print_r ($ test_arr); echo"

Array_shift returns the first element in the array "; $ B = array_shift ($ test_arr); print_r ($ B); echo"

Array_unshift: "; array_unshift ($ test_arr, 'unshift '); print_r ($ test_arr); echo"

Array_pad: "; $ c = array_pad ($ test_arr,-7, 'Xiang '); print_r ($ c); echo"

In_array: "; if (in_array (2, $ test_arr) {echo 'in _ array through validate';} else {echo 'validate die. ';} echo"

Array_keys: returns an array key name combined into a set: "; $ allmarke = array_keys ($ test_arr); var_dump ($ allmarke );

To be improved