PHP intl "fr_FR" pattern for NumberFormatter for old intl ICU Data

example.php

<?php
$pattern = file_get_contents('fr_FR.txt');
$fmt = new NumberFormatter('fr_FR', NumberFormatter::PATTERN_RULEBASED, $pattern);
echo $fmt->format(52450.00);
?>

fr_FR.txt

%spellout-numbering-year:
    0: =%spellout-numbering=;
    1100/100: <%spellout-cardinal-masculine<-cent>%%cents-m>;
    10000: =%spellout-numbering=;
    -x: moins >%spellout-numbering-year>;
    x.x: =#,###0.#=;
%spellout-numbering:
    0: =%spellout-cardinal-masculine=;
%%et-un:
    1: et-un;
    2: =%spellout-cardinal-masculine=;
    11: et-onze;
    12: =%spellout-cardinal-masculine=;
%%cents-m:
    0: s;
    1: ' =%spellout-cardinal-masculine=;
%%subcents-m:
    0: s;
    1: -=%spellout-cardinal-masculine=;
%%spellout-leading:
    0: =%spellout-cardinal-masculine=;
    80/20: quatre-vingt;
    81/20: quatre-vingt->%%spellout-leading>;
    100: cent;
    101: cent >%%spellout-leading>;
    200: <%%spellout-leading< cent;
    201: <%%spellout-leading< cent >%%spellout-leading>;
    1000: =%spellout-cardinal-masculine=;
%spellout-cardinal-masculine:
    0: zéro;
    1: un;
    2: deux;
    3: trois;
    4: quatre;
    5: cinq;
    6: six;
    7: sept;
    8: huit;
    9: neuf;
    10: dix;
    11: onze;
    12: douze;
    13: treize;
    14: quatorze;
    15: quinze;
    16: seize;
    17: dix->%spellout-cardinal-masculine>;
    20: vingt;
    21: vingt->%%et-un>;
    30: trente;
    31: trente->%%et-un>;
    40: quarante;
    41: quarante->%%et-un>;
    50: cinquante;
    51: cinquante->%%et-un>;
    60/20: soixante;
    61/20: soixante->%%et-un>;
    80/20: quatre-vingt>%%subcents-m>;
    100: cent;
    101: cent >%spellout-cardinal-masculine>;
    200: <%spellout-cardinal-masculine< cent>%%cents-m>;
    1000: mille;
    1001: mille >%spellout-cardinal-masculine>;
    2000: <%%spellout-leading< mille;
    2001: <%%spellout-leading< mille >%spellout-cardinal-masculine>;
    1000000: un million;
    1000001: un million >%spellout-cardinal-masculine>;
    2000000: <%%spellout-leading< millions;
    2000001: <%%spellout-leading< millions >%spellout-cardinal-masculine>;
    1000000000: un milliard;
    1000000001: un milliard >%spellout-cardinal-masculine>;
    2000000000: <%%spellout-leading< milliards;
    2000000001: <%%spellout-leading< milliards >%spellout-cardinal-masculine>;
    1000000000000: un billion;
    1000000000001: un billion >%spellout-cardinal-masculine>;
    2000000000000: <%%spellout-leading< billions;
    2000000000001: <%%spellout-leading< billions >%spellout-cardinal-masculine>;
    1000000000000000: un billiard;
    1000000000000001: un billiard >%spellout-cardinal-masculine>;
    2000000000000000: <%%spellout-leading< billiards;
    2000000000000001: <%%spellout-leading< billiards >%spellout-cardinal-masculine>;
    1000000000000000000: =#,##0=;
    -x: moins >%spellout-cardinal-masculine>;
    x.x: <%spellout-cardinal-masculine< virgule >%spellout-cardinal-masculine>;
%%et-une:
    1: et-une;
    2: =%spellout-cardinal-feminine=;
    11: et-onze;
    12: =%spellout-cardinal-feminine=;
%%cents-f:
    0: s;
    1: ' =%spellout-cardinal-feminine=;
%%subcents-f:
    0: s;
    1: -=%spellout-cardinal-feminine=;
%spellout-cardinal-feminine:
    0: zéro;
    1: une;
    2: =%spellout-cardinal-masculine=;
    20: vingt;
    21: vingt->%%et-une>;
    30: trente;
    31: trente->%%et-une>;
    40: quarante;
    41: quarante->%%et-une>;
    50: cinquante;
    51: cinquante->%%et-une>;
    60/20: soixante;
    61/20: soixante->%%et-une>;
    80/20: quatre-vingt>%%subcents-f>;
    100: cent;
    101: cent >%spellout-cardinal-feminine>;
    200: <%spellout-cardinal-masculine< cent>%%cents-f>;
    1000: mille;
    1001: mille >%spellout-cardinal-feminine>;
    2000: <%%spellout-leading< mille;
    2001: <%%spellout-leading< mille >%spellout-cardinal-feminine>;
    1000000: un million;
    1000001: un million >%spellout-cardinal-feminine>;
    2000000: <%%spellout-leading< millions;
    2000001: <%%spellout-leading< millions >%spellout-cardinal-feminine>;
    1000000000: un milliard;
    1000000001: un milliard >%spellout-cardinal-feminine>;
    2000000000: <%%spellout-leading< milliards;
    2000000001: <%%spellout-leading< milliards >%spellout-cardinal-feminine>;
    1000000000000: un billion;
    1000000000001: un billion >%spellout-cardinal-feminine>;
    2000000000000: <%%spellout-leading< billions;
    2000000000001: <%%spellout-leading< billions >%spellout-cardinal-feminine>;
    1000000000000000: un billiard;
    1000000000000001: un billiard >%spellout-cardinal-feminine>;
    2000000000000000: <%%spellout-leading< billiards;
    2000000000000001: <%%spellout-leading< billiards >%spellout-cardinal-feminine>;
    1000000000000000000: =#,##0=;
    -x: moins >%spellout-cardinal-feminine>;
    x.x: <%spellout-cardinal-feminine< virgule >%spellout-cardinal-feminine>;
%%et-unieme:
    1: et-unième;
    2: =%%spellout-ordinal=;
    11: et-onzième;
    12: =%%spellout-ordinal=;
%%cents-o:
    0: ième;
    1: -=%%et-unieme=;
    2: ' =%%spellout-ordinal=;
    11: -et-onzième;
    12: ' =%%spellout-ordinal=;
%%subcents-o:
    0: ième;
    1: -=%%et-unieme=;
    2: -=%%spellout-ordinal=;
    11: -et-onzième;
    12: -=%%spellout-ordinal=;
%%mille-o:
    0: ième;
    1: e-=%%et-unieme=;
    2: e =%%spellout-ordinal=;
    11: e-et-onzième;
    12: e =%%spellout-ordinal=;
%%spellout-ordinal:
    1: unième;
    2: deuxième;
    3: troisième;
    4: quatrième;
    5: cinquième;
    6: sixième;
    7: septième;
    8: huitième;
    9: neuvième;
    10: dixième;
    11: onzième;
    12: douzième;
    13: treizième;
    14: quatorzième;
    15: quinzième;
    16: seizième;
    17: dix->%%spellout-ordinal>;
    20: vingtième;
    21: vingt->%%et-unieme>;
    30: trentième;
    31: trente->%%et-unieme>;
    40: quarantième;
    41: quarante->%%et-unieme>;
    50: cinquantième;
    51: cinquante->%%et-unieme>;
    60: soixantième;
    61/20: soixante->%%et-unieme>;
    80/20: quatre-vingt>%%subcents-o>;
    100: cent>%%cents-o>;
    200: <%spellout-cardinal-masculine< cent>%%cents-o>;
    1000: mill>%%mille-o>;
    2000: <%%spellout-leading< mill>%%mille-o>;
    1000000: <%%spellout-leading< million>%%cents-o>;
    1000000000: <%%spellout-leading< milliard>%%cents-o>;
    1000000000000: <%%spellout-leading< billion>%%cents-o>;
    1000000000000000: <%%spellout-leading< billiard>%%cents-o>;
    1000000000000000000: =#,##0=;
%spellout-ordinal-masculine-plural:
    0: =%spellout-ordinal-masculine=s;
%spellout-ordinal-masculine:
    0: zéroième;
    1: premier;
    2: =%%spellout-ordinal=;
    -x: moins >%spellout-ordinal-masculine>;
    x.x: =#,##0.#=;
%spellout-ordinal-feminine-plural:
    0: =%spellout-ordinal-feminine=s;
%spellout-ordinal-feminine:
    0: zéroième;
    1: première;
    2: =%%spellout-ordinal=;
    -x: moins >%spellout-ordinal-feminine>;
    x.x: =#,##0.#=;