<?php
function do_split($name) {
return preg_split('/([A-Z]{2,}|([A-Z][^A-Z]*))/', $name, null, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
}
function convert_case($name) {
return implode(
'_',
array_map(
'strtolower',
do_split($name)
)
);
}
function convert_case2($name) {
$words = array();
$prev = '';
for ($i = 0; $i < strlen($name); $i++) {
$char = $name[$i];
echo "{$char} " . (ctype_upper($char) ? 'true' : 'false') . "\n";
}
return strtolower(implode('_', $words));
}
convert_case2('FooBARbar0123');
$samples = array(
'FooBar',
'FooBAR',
'FOOBar',
'foo_bar',
'FOO_bar',
'foo_BAR',
'foo_Bar',
'Foo_bar',
);
/*
print_r(array_map(function ($name) {
return array(
'name' => $name,
'split' => do_split($name),
'converted' => convert_case($name),
);
}, $samples));
*/
preferences:
31.29 ms | 402 KiB | 5 Q