explode() 函数把字符串分割为数组;implode() 函数把数组元素组合为一个字符串。
explode
定义array explode ( string $delimiter , string $string [, int $limit = PHP_INT_MAX ] )
参数: limit 限制结果的个数。
<?php$str = "hi, jason, world";print_r(explode(',', $str));print_r(explode(',', $str, 2));
输出:
Array([0] => hi[1] => jason[2] => world)Array([0] => hi[1] => jason, world)
implode
定义
string implode ( string $glue , array $pieces )string implode ( array $pieces )
<?php$array = array('hello', 'world', 'is', 'php');echo implode(' ', $array);echo "\n";$array1 = array('a' => 'hello', 'b'=>'world', 'x' => 'jason' );echo implode(' ', $array1);
输出
hello world is phphello world jason