根据字符长度移除数组元素

Question

我在PHP中有一个数组:

$array = array("Linda","Chadwick","Bari","Angela","Marco");

因此,

 $array[0]="Linda"  
 $array[1]="Chadwick"  
 $array[2]="Bari"  
 $array[3]="Angela"  
 $array[4]="Marco"  

我想删除字符串长度为<=4的名称。

键被调整。

$array[0]="Linda"
$array[1]="Chadwick"  
$array[2]="Angela"  
$array[3]="Marco"  

Answer 1

您可以简单地使用array_filter仅与strlen一起使用

$array = array("Linda","Chadwick","Bari","Angela","Marco");
$result = array_filter($array,function($v){ return strlen($v) > 4; });
print_r($result);
$result = array();
array_walk($array,function($v) use (&$result){ if(strlen($v) > 4){$result[] = $v;} });
print_r($result);

array_filter

array_walk

Answer 2

先用array_filter，再用array_values重置密钥序列:

$array = array("Linda","Chadwick","Bari","Angela","Marco");
$array = array_values(array_filter($array, function($v) {
    return strlen($v) > 4;
}));
print_r($array);

输出:

Array ( [0] => Linda [1] => Chadwick [2] => Angela [3] => Marco )