php将字符串随机分割成不同长度数组的方法

本文实例讲述了php将字符串随机分割成不同长度数组的方法。分享给大家供大家参考。具体分析如下：

这里使用php对字符串在指定的长度范围内进行随机分割，把分割后的结果存在数组里面

function RandomSplit($min, $max, $str){
 $a = array();
 while ($str != ''){
 $p = rand($min, $max);
 $p = ($p > strlen($str)) ? strlen($str) : $p;
 $buffer = substr($str, 0, $p);
 $str = substr($str, $p, strlen($str)-$p);
 $a[] = $buffer;
 }
 return $a;
}
//范例：
/*
** Example:
*/
$test_string = 'This is a example to test the RandomSplit function.';
print_r(RandomSplit(1, 7, $test_string));
/*
Outputs something like this
(Array items are 1 to 7 characters long): 
Array
(
 [0] => This
 [1] => is
 [2] => a exam
 [3] => ple to
 [4] => test t
 [5] => he
 [6] => 
 [7] => ran
 [8] => d_spl
 [9] => it f
 [10] => un
 [11] => ction.
)
*/

希望本文所述对大家的php程序设计有所帮助。