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¿Hay alguna forma de recorrer un cuestionario HTML para obtener texto de "laber for" con valor "true"?

Tengo una prueba de botón de opción múltiple. Quiero obtener todas las respuestas correctas e imprimirlas. Las respuestas correctas están marcadas value="true" en html. Otras respuestas tienen un valor diferente. ¿Cómo puedo recorrer para obtener el texto de todas las respuestas correctas usando javascript o PHP? Ejemplo:

 <span class='mlw_qmn_question_number'>1. </span> <span class='mlw_qmn_question '>Roberta _____ from Canada.</span> <div class='qmn_radio_answers mlwRequiredRadio'> <div class='qmn_mc_answer_wrap' id='question21-are'> <input type='radio' class='qmn_quiz_radio' name='question21' id='question21_1' value='are' /> <label for='question21_1'>are</label> </div> <div class='qmn_mc_answer_wrap' id='question21-is'> <input type='radio' class='qmn_quiz_radio' name='question21' id='question21_2' value='true' /> <label for='question21_2'>is</label> </div> <div class='qmn_mc_answer_wrap' id='question21-am'> <input type='radio' class='qmn_quiz_radio' name='question21' id='question21_3' value='am' /> <label for='question21_3'>am</label> </div> <div class='qmn_mc_answer_wrap' id='question21-be'> <input type='radio' class='qmn_quiz_radio' name='question21' id='question21_4' value='be' /> <label for='question21_4'>be</label> </div> <input type='radio' style='display: none;' name='question21' id='question21_none' checked='checked' value='No Answer Provided' /> </div>

about 4 years ago · Juan Pablo Isaza
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En JavaScript con querySelectorAll , querySelector y Array.prototype.map . Primero encuentre todas las entradas con querySelectorAll . Luego use map con querySelector para encontrar la etiqueta correspondiente para cada entrada y cree una matriz de etiquetas. Luego asigne las etiquetas a su contenido.

 const inputs = document.querySelectorAll('input[value=true]'); const labels = Array.prototype.map.call(inputs, input => document.querySelector(`label[for=${input.id}]`)); console.log(Array.prototype.map.call(labels, label => label.innerHTML));
 <span class='mlw_qmn_question_number'>1. </span><span class='mlw_qmn_question '>Roberta _____ from Canada.</span> <div class='qmn_radio_answers mlwRequiredRadio'> <div class='qmn_mc_answer_wrap' id='question21-are'><input type='radio' class='qmn_quiz_radio' name='question21' id='question21_1' value='are' /> <label for='question21_1'>are</label></div> <div class='qmn_mc_answer_wrap' id='question21-is'><input type='radio' class='qmn_quiz_radio' name='question21' id='question21_2' value='true' /> <label for='question21_2'>is</label></div> <div class='qmn_mc_answer_wrap' id='question21-am'><input type='radio' class='qmn_quiz_radio' name='question21' id='question21_3' value='am' /> <label for='question21_3'>am</label></div> <div class='qmn_mc_answer_wrap' id='question21-be'><input type='radio' class='qmn_quiz_radio' name='question21' id='question21_4' value='be' /> <label for='question21_4'>be</label></div><input type='radio' style='display: none;' name='question21' id='question21_none' checked='checked' value='No Answer Provided' /> </div>

about 4 years ago · Juan Pablo Isaza Report
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