Regex PHP find 2 words same position -

i want apply regex find english month when search month string in spanish or other idiom. have array of possible matches:

$monthsidioms = array(                 'en' => array('jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug', 'sep', 'oct', 'nov', 'dec'),     'es' => array(             '/ene/',             '/feb/',             '/mar/',             '/abr/',             '/may/',             '/jun/',             '/jul/',             '/ago/',             '/sep/',             '/oct/',             '/nov/',             '/dic/'         )); 

but date variable can have format:

$date = "24 ene 15:45"; 

or one:

$date = "24 enero 15:45"; 

so need regex find ene or enero in date , other months:

'es' => array(                     '/ene|enero/',                     '/feb|febrero/',                     '/mar|marzo/',                     '/abr|abril/',                     '/may|mayo/',                     '/jun|junio/',                     '/jul|julio/',                     '/ago|agosto/',                     '/set|septiembre/',                     '/oct|octubre/',                     '/nov|noviembre/',                     '/dic|diciembre/'                 ) 

and call with:

preg_replace($monthsidioms['es'], $monthsidioms['en'], $date); 

but regex | not working. dong wrong?

note 'es' array regex strings.

so clarify this, want if have date: "24 ene 15:45" or this: "24 enero 15:45" converted to: "24 jan 15:45" same with other month of year: "24 ago 15:45" or "24 agosto 15:45" "24 aug 15:45".

well since short names of month inside actual name of month add space:

'en' => array('jan ', 'feb ', 'mar ', 'etc'), 'es' => array('/ene |enero /','/feb |febrero /','/mar |marzo / ','etc')