<?php
 
function converteParaJson($str) {
    //Primeiro iremos converter fazer um parser para JSON +ou- assim:
 
    //Cria as temporadas
    $str = preg_replace('#^(|\s)+(\d+)(\s|)\{#', '"$2": {', $str);
    $str = preg_replace('#\}(\s|)+(\d+)\{#', '}, "$2": {', $str);
 
    //Cria os episódios
    $str = preg_replace('#(\d+)(\s+|)\-(\s+|)([^\r\n]+)#', '"$1": "$4",', $str);
 
    //Remove virgulas extras
    $str = preg_replace('#,[\s]+\}#', '}', $str);
 
    $str = '{' . $str . '}';
 
    return $str;
}
 
$txt = '1{
    1 - Episódio número 1 na 1ª Temporada
    2 - Episódio número 2 na 1ª Temporada
}
2{
    1 - Episódio número 1 na 2ª Temporada
    2 - Episódio número 2 na 2ª Temporada
}';
 
$txt = converteParaJson($txt);
 
//Converte o json para array do php
$data = json_decode($txt, true);
 
print_r($data);

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