php鎬庝箞鍒犻櫎鏁扮粍鍏冪礌
扬州沐宇科技
2023-08-16 17:08:42
PHP
鍦≒HP涓紝鍙互浣跨敤unset()鍑芥暟鏉ュ垹闄ゆ暟缁勫厓绱犮€倁nset()鍑芥暟鎺ュ彈涓€涓垨澶氫釜鍙傛暟锛屾瘡涓弬鏁拌〃绀鸿鍒犻櫎鐨勬暟缁勫厓绱犵殑绱㈠紩鎴栭敭銆備笅闈㈡槸涓€浜涚ず渚嬶細
- 鍒犻櫎绱㈠紩涓?鐨勬暟缁勫厓绱狅細
$array = [1, 2, 3];
unset($array[0]);
print_r($array);
杈撳嚭锛?/p>
Array
(
[1] => 2
[2] => 3
)
- 鍒犻櫎鍏宠仈鏁扮粍涓寚瀹氶敭鐨勫厓绱狅細
$array = ['name' => 'John', 'age' => 30, 'gender' => 'male'];
unset($array['age']);
print_r($array);
杈撳嚭锛?/p>
Array
(
[name] => John
[gender] => male
)
- 鍒犻櫎澶氫釜鏁扮粍鍏冪礌锛?/li>
$array = [1, 2, 3, 4, 5];
unset($array[1], $array[3]);
print_r($array);
杈撳嚭锛?/p>
Array
(
[0] => 1
[2] => 3
[3] => 5
)
璇锋敞鎰忥紝浣跨敤unset()鍑芥暟鍙細鍒犻櫎鎸囧畾鐨勬暟缁勫厓绱狅紝涓嶄細閲嶆柊绱㈠紩鏁扮粍銆?/p>
