3v4l.org

run code in 300+ PHP versions simultaneously
<?php $r = '<div class="form-group>'; $label = '<label class="control-label" for="id_f-variants-99999-is_active">Is active</label>'; $label = substr($r, 0, strpos($r, ">")); $label .= '>'; $r .= $label; $r .= '<input id="id_f-variants-99999-is_active" class="form-control checkbox" type="checkbox" name="f-variants-99999-is_active"></input>'; $r .= '<span class="unchecked">hoa</span>'; $r .= '<span class="checked">hoahoahoa</span>'; $r .= '</label>'; $r .= '</div>'; echo($r);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
<div class="form-group><div class="form-group><input id="id_f-variants-99999-is_active" class="form-control checkbox" type="checkbox" name="f-variants-99999-is_active"></input><span class="unchecked">hoa</span><span class="checked">hoahoahoa</span></label></div>

preferences:
236.5 ms | 406 KiB | 310 Q