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31 lines
492 B
Markdown
31 lines
492 B
Markdown
# DuplicateArrayKey
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Emitted when an array has a key more than once
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```php
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<?php
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$arr = [
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'a' => 'one',
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'b' => 'two',
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'c' => 'this text will be overwritten by the next line',
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'c' => 'three',
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];
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```
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## How to fix
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Remove the offending duplicates:
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```php
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<?php
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$arr = [
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'a' => 'one',
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'b' => 'two',
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'c' => 'three',
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];
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```
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The first matching `'c'` key was removed to prevent a change in behaviour (any new duplicate keys overwrite the values of prevvious ones).
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