PHP删除结构内数组中的重复结果

Question

我在一个结构内创建了一个语言循环，它在 radio 中返回结果，我需要返回用户在此 foreach 之前选择的最后一个选择...在这段代码中，我得到了重复的结果，选中的结果和未选中的结果。如何显示不重复检查的结果？

<?php
    // to select the language that insert in table "x_language" for this user
    // the result is 1 in this case
    $usuario_id = $this->session->userdata('usuario_id');
    $usuario_id = $this->cake->get_current_language_to_user($usuario_id);
    // to get all languages from table "y_languages"
    $paises = $this->cake->get_paises();
    $i = 0;
    foreach($paises as $pais){
        // here i get to checked the "y_languages" -> "$pais->nome" that have the same result on "x_language"
        if($usuario_id['nome'] == $pais->nome){echo "<div class='radio iradio'><label><input type='radio' checked='checked' name='languageselected' value='".$pais->id_pais."'> ".$pais->nome."</label></div>"; }
        ++$i;
        echo "<div class='radio iradio'><label><input type='radio' name='languageselected' value='".$pais->id_pais."'> ".$pais->nome."</label></div>";

        if($i%17===0) { 
            echo "</div></div><div class='col-lg-2'><div class='radio iradio'>";
        }
    } 
?>

Answer 1

希望这会奏效:

<?php
    // to select the language that insert in table "x_language" for this user
    // the result is 1 in this case
    $usuario_id = $this->session->userdata('usuario_id');
    $usuario_id = $this->cake->get_current_language_to_user($usuario_id);
    // to get all languages from table "y_languages"
    $paises = $this->cake->get_paises();
    $i = 0;
    //Getting unique from array
    $paises_unq = array_unique($paises[0]);
    foreach($paises_unq as $pais){
        // here i get to checked the "y_languages" -> "$pais->nome" that have the same result on "x_language"
        if($usuario_id['nome'] == $pais->nome){echo "<div class='radio iradio'><label><input type='radio' checked='checked' name='languageselected' value='".$pais->id_pais."'> ".$pais->nome."</label></div>"; }
        ++$i;
        echo "<div class='radio iradio'><label><input type='radio' name='languageselected' value='".$pais->id_pais."'> ".$pais->nome."</label></div>";

        if($i%17===0) { 
            echo "</div></div><div class='col-lg-2'><div class='radio iradio'>";
        }
    } 
?>