0
But, it only saves lineatura1 and changes lineatura10, lineatura11 and lineatura12.
This is the current code
Code:
function check_uncheck_checkbox(isChecked, lineatura1) {
  if(isChecked) {
$('input[name="cor1"]').each(function() { 
  this.checked = true;
  $('[name^="lineatura1"]').val(lineatura1);
});
  } else {
$('input[name="cor1"]').each(function() {
  this.checked = false;
  $('[name^="lineatura1"]').val(null);
});
  }
  if(isChecked) {
$('input[name="cor2"]').each(function() { 
  this.checked = true;
  $('[name^="lineatura2"]').val(lineatura2);
});
  } else {
$('input[name="cor2"]').each(function() {
  this.checked = false;
  $('[name^="lineatura2"]').val(null);
});
  }
  if(isChecked) {
$('input[name="cor3"]').each(function() { 
  this.checked = true;
  $('[name^="lineatura3"]').val(lineatura3);
});
  } else {
$('input[name="cor3"]').each(function() {
  this.checked = false;
  $('[name^="lineatura3"]').val(null);
});
  }
  if(isChecked) {
$('input[name="cor4"]').each(function() { 
  this.checked = true;
  $('[name^="lineatura4"]').val(lineatura4);
});
  } else {
$('input[name="cor4"]').each(function() {
  this.checked = false;
  $('[name^="lineatura4"]').val(null);
});
  }
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
                                    <div class="span12" style="padding: 1%; margin-left: 0">
                                <legend>Cores Padrão </legend>
                                <input type="checkbox" name="checkall" id="checkall" onClick="check_uncheck_checkbox(this.checked, 52);"/> CMYK</div>
                                </div>
<div id="divCheckAll" class="span12" style="padding: 1%; margin-left: 0">
                                    <div class="span2">
                                        <h4>CYAN</h4>
                                        <img src= "/images/cor-01.jpg"  width="57" height="27">
                                        <input type="checkbox" name="cor1" value="CYAN" />
                                        <label for="lineatura1">Lineatura<span class="required"></span></label>
                                        <select class="span6" name="lineatura1" id="lineatura1" value="">
                                        <option value="">Selecione</option>
                                        <option value="52">52</option>
                                        <option value="42">42</option>
                                        </select>
                                    </div>
                                    <div class="span2">
                                        <h4>MAGENTA</h4>
                                        <img src= "/images/cor-02.jpg"  width="57" height="27">
                                        <input type="checkbox" name="cor2" value="MAGENTA" />
                                        <label for="lineatura2">Lineatura<span class="required"></span></label>
                                        <select class="span6" name="lineatura2" id="lineatura2" value="">
                                        <option value="">Selecione</option>
                                        <option value="52">52</option>
                                        <option value="42">42</option>
                                        </select> 
                                    </div>
                                    <div class="span2">
                                        <h4>YELLOW</h4>
                                        <img src= "/images/cor-03.jpg"  width="57" height="27">
                                        <input type="checkbox" name="cor3" value="YELLOW" />
                                        <label for="lineatura3">Lineatura<span class="required"></span></label>
                                        <select class="span6" name="lineatura3" id="lineatura3" value="">
                                        <option value="">Selecione</option>
                                        <option value="52">52</option>
                                        <option value="42">42</option>
                                        </select> 
                                    </div>
                                    
                                    <div class="span2">
                                        <h4>BLACK</h4>
                                        <img src= "/images/cor-04.jpg"  width="57" height="27">
                                        <input type="checkbox" name="cor4" value="BLACK" />
                                        <label for="lineatura4">Lineatura<span class="required"></span></label>
                                        <select class="span6" name="lineatura4" id="lineatura4" value="">
                                        <option value="">Selecione</option>
                                        <option value="52">52</option>
                                        <option value="42">42</option>
                                        </select>
                                    </div>


just set the value of select, ready solved the/
– Joan Marcos
I’m a layman. How do I do that ?
– Julio Ricardo
your doubt does not refer to the PHP language but to javascript ;)
– tetri