<?php
function camelCaseToUnderscore($input)
{
return strtolower(preg_replace('/(?<!^)[A-Z]/', '_$0', $input));
}
echo camelCaseToUnderscore('caseStudy'), "\n";
echo camelCaseToUnderscore('News'), "\n";
echo camelCaseToUnderscore('BuyACar'), "\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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
- case_study
news
buy_a_car
x_m_l
simple_x_m_l
preferences:
153.48 ms | 404 KiB | 204 Q