Array方法

<?php

array_push(array(⚫,⚫,⚫,⚫),●);

array_unshift(array(⚫,⚫,⚫,⚫),●);

array_pop(array(⚫,⚫,⚫,⚫));

array_filter(array(⚫,●,●,⚫),function($value){return $value === ●;});

array_map(array(⚫,⚫,⚫,⚫),function($value){if($value === ⚫){return ●;}});

implode('-',(array(⚫,⚫,⚫,⚫));

array_merge(array(⚫,⚫),array(●,●));

call_user_func_array('array_merge',(array(⚫,⚫,array(●,●)));

array_slice(array(⚫,⚫,●,●),1,2);