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问题描述
我们希望获得包含完整信息的结果,例如Unique = Value1,Value2。 Duplicate = Value1。我们有一个数组,下面有一个示例数组。
We would like to get the result with full information, like Unique = Value1, Value2. Duplicate= Value1 . We have an array which is mention below it a sample array.
$array1 = array('John Wilkins', 'Poul Warner', 'Rodger Smith', 'David Bentham', 'David Wilkins', 'Brian Smith', 'David Warner', 'John Wilkins', 'Poul Warner', 'David Wilkins', 'Brian Smith', 'David Warner', 'John Wilkins', 'Poul Warner', 'David Bentham', 'David Wilkins');我们将将此函数与数值一起使用。我们想以这种格式打印结果。
We'll use this function with Numeric values. We would like to print the result in this format.
John Wilkins | Duplicate Poul Warner | Duplicate Rodger Smith | Unique等等。
推荐答案这几乎是 array_count_values() 可以:
This is pretty much what array_count_values() does:
<?php $array1 = array('John Wilkins', 'Poul Warner', 'Rodger Smith', 'David Bentham', 'David Wilkins', 'Brian Smith', 'David Warner','John Wilkins', 'Poul Warner', 'David Wilkins', 'Brian Smith', 'David Warner','John Wilkins', 'Poul Warner', 'David Bentham', 'David Wilkins'); $counts = array_count_values($array1); foreach ($counts as $name => $count) { print $name . ' | ' . ($count > 1 ? 'Duplicate' : 'Unique') . "\n"; }输出:
John Wilkins | Duplicate Poul Warner | Duplicate Rodger Smith | Unique David Bentham | Duplicate David Wilkins | Duplicate Brian Smith | Duplicate David Warner | Duplicate(演示)
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检查数组中的唯一值和非唯一值
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