<?php
function camelCaseToUnderscore($input)
{
return strtolower(preg_replace('/(?<!^)[A-Z]/', '_$0', $input));
}
echo camelCaseToUnderscore('CamelCaseForTheWin'), "\n";
echo camelCaseToUnderscore('ACar'), "\n";
echo camelCaseToUnderscore('BuyACar'), "\n";
echo camelCaseToUnderscore('contractedHours123'), "\n";
echo camelCaseToUnderscore('XML'), "\n";
echo camelCaseToUnderscore('SimpleXML'), "\n";
- Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- camel_case_for_the_win
a_car
buy_a_car
contracted_hours123
x_m_l
simple_x_m_l
preferences:
177.23 ms | 403 KiB | 211 Q