PHP中的类似文本(similar text in PHP)

 我有这样的PHP数组 
 
$array = array("foo", "bar", "hallo", "world", "fooo", "bar1", "hall_o", "wor1ld", "foo", "bard", "hzallo", "w44orld");
 
 我想比较一个数组的每个元素与剩余的元素。 
 
 例如：我想"foo" with "bar", "hallo", "world", "fooo", "bar1", "hall_o", "wor1ld", "foo", "bard", "hzallo" and "w44orld" 。 
 
 然后，我想"bar" with "foo", "hallo", "world", "fooo", "bar1", "hall_o", "wor1ld", "foo", "bard", "hzallo", "w44orld"等等，直到最后一个元素。 
 
 让我们考虑元素，我们将其作为$var_1和剩余元素的变量作为$ var_2进行比较; 如果similar_text($var_1, $var_2, $percent); 返回$percent value > 90%然后我想打印$var_1和$var_2所有相应类似文本值，其匹配百分比> 90 
 
 目前我计划使用两个循环来实现这一点， $var_1外部循环和$var_2内部循环。 array每个元素最多可以包含5000个字符，并且array可以有1000个元素，因此我当前的逻辑非常昂贵。 
 
 任何方向以更好的方式处理它？ 

I've PHP array something like this 
 
$array = array("foo", "bar", "hallo", "world", "fooo", "bar1", "hall_o", "wor1ld", "foo", "bard", "hzallo", "w44orld");
 
I want to compare each element of an array with remaining elements.
 
Ex: I want to compre "foo" with "bar", "hallo", "world", "fooo", "bar1", "hall_o", "wor1ld", "foo", "bard", "hzallo" and "w44orld".
 
Then, I want to compre "bar" with "foo", "hallo", "world", "fooo", "bar1", "hall_o", "wor1ld", "foo", "bard", "hzallo", "w44orld" and so on till last element.
 
Let's consider element, which we are comparing as $var_1 and variable for remaining elements as $var_2; If similar_text($var_1, $var_2, $percent); returns $percent value > 90% then I want to print $var_1 and all corresponding similar text values of $var_2 for which matching percentage > 90
 
Currently I'm planning to use two loops to achieve this, external loop for $var_1 and internal loop for $var_2 . Each element of the array can have value upto 5000 characters and there can be 1000 elements in a array, so my current logic is very expensive. 
 
Any direction to handle it in better way? 

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