from_camel_case, to_camel_case
표기법이 달라 같은 엔티티 참조가 어려울때, 한쪽의 표기법을 변경하는 방법
자바나 자바스크립트 변수명 또는 XML의 node, attribute name이 camel 을 쓰고,
DB Column이 underscore(_) 를 쓰죠.
( db 컬럼과 xml 의 node명을 상호 참조할경우 아래와 같이 변환해서 쓰면 좋습니다.
xml을 파싱해서 db에 넣는다던지, db를 조회해서 xml을 만든다던지..
)
<?php
/**
* Translates a camel case string into a string with underscores (e.g. firstName -> first_name)
* @param string $str String in camel case format
* @return string $str Translated into underscore format
*/
function from_camel_case($str) {
$str[0] = strtolower($str[0]);
$func = create_function('$c', 'return "_" . strtolower($c[1]);');
return preg_replace_callback('/([A-Z])/', $func, $str);
}
/**
* Translates a string with underscores into camel case (e.g. first_name -> firstName)
* @param string $str String in underscore format
* @param bool $capitalise_first_char If true, capitalise the first char in $str
* @return string $str translated into camel caps
*/
function to_camel_case($str, $capitalise_first_char = false) {
if($capitalise_first_char) {
$str[0] = strtoupper($str[0]);
}
$func = create_function('$c', 'return strtoupper($c[1]);');
return preg_replace_callback('/_([a-z])/', $func, $str);
}
/**
* Translates a camel case string into a string with underscores (e.g. firstName -> first_name)
* @param string $str String in camel case format
* @return string $str Translated into underscore format
*/
function from_camel_case($str) {
$str[0] = strtolower($str[0]);
$func = create_function('$c', 'return "_" . strtolower($c[1]);');
return preg_replace_callback('/([A-Z])/', $func, $str);
}
/**
* Translates a string with underscores into camel case (e.g. first_name -> firstName)
* @param string $str String in underscore format
* @param bool $capitalise_first_char If true, capitalise the first char in $str
* @return string $str translated into camel caps
*/
function to_camel_case($str, $capitalise_first_char = false) {
if($capitalise_first_char) {
$str[0] = strtoupper($str[0]);
}
$func = create_function('$c', 'return strtoupper($c[1]);');
return preg_replace_callback('/_([a-z])/', $func, $str);
}
$test1 = "MODIFY_DATE";
$test2 = "modifyDate";
$result1 = to_camel_case(strtolower($test1));
$result2 = strtoupper(from_camel_case($test2));
echo "$test1 => $result1 <br>";
echo "$test2 => $result2 <br>";
echo "$test2 => $result2 <br>";
?>
output:
MODIFY_DATE => modifyDate
modifyDate => MODIFY_DATE
modifyDate => MODIFY_DATE
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