回答編集履歴
1
chousei
test
CHANGED
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@@ -5,3 +5,15 @@
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5
5
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$categories_namesをarray_mapしてesc_html()をかました上で
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6
6
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7
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implode()してください
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+
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+
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# sample
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```php
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14
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15
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$categories=["test1","test2","test3"];
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print implode(",",array_map(function($x){return "_".$x."_";},$categories));
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18
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```
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