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<?php $arr = [ 'foo', 'foo', 'bar', 'baZ', 'baz', 'fÖo' ]; $collator = new Collator('en'); $collator->setStrength(Collator::PRIMARY); $arr2 = []; foreach ($arr as $v) { foreach ($arr2 as $v) { if ($collator->compare($v, $v2) === 0) { continue 2; } } $arr2[] = $v; } var_dump($arr2);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 Warning: Undefined variable $v2 in /in/9tHYR on line 18 Deprecated: Collator::compare(): Passing null to parameter #2 ($string2) of type string is deprecated in /in/9tHYR on line 18 array(6) { [0]=> string(3) "foo" [1]=> string(3) "foo" [2]=> string(3) "foo" [3]=> string(3) "foo" [4]=> string(3) "foo" [5]=> string(3) "foo" }

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