回答編集履歴
2
調整
test
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@@ -1,3 +1,4 @@
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1
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+
正規表現における肯定後読みを利用してください。
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2
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```PHP
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3
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$list=["京都","京都府","東京","東京都","大阪府","神奈川県"];
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$pattern='/(?<=東京)都|府|県/u';
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@@ -5,3 +6,4 @@
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print $address."→".preg_replace($pattern,'',$address)."<br>";
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}
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```
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+
「東京」の後ろに来る「都」もしくは「府」「県」を削除
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1
chousei
test
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@@ -1,7 +1,7 @@
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1
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```PHP
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2
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-
$list=["京都","京都府","東京","東京都","大阪府"];
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2
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+
$list=["京都","京都府","東京","東京都","大阪府","神奈川県"];
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3
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$pattern='/(?<=東京)都|府|県/u';
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foreach($list as $address){
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5
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print preg_replace($pattern,'',$address)."<br>";
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5
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print $address."→".preg_replace($pattern,'',$address)."<br>";
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}
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```
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