php [php：翻译骆驼/蛇案]キャメルケース/スネークケース変换する的な。＃php

Posted 2021-05-05

// camel to snake
$before = "fooBar";
$agter = strtolower(preg_replace("/([A-Z])/u", "_$0", $before));
echo $after; //foo_bar

// upper camel to snake
$before = "FooBar";
$after = strtolower(preg_replace("/([A-Z])/u", "_$0", $before));
$after = substr( $after, 1 );
echo $after; //foo_bar

// snake to camel
$before = "foo_bar";
$parts = explode("_", $str);
foreach ($parts as $part) {
  if (!isset( $after )) {
    $after = $part;
  } else {
    $after .= ucfirst( $part );
  }
}
echo $after; //fooBar;