diff options
Diffstat (limited to 'user_guide_src/source/helpers')
-rw-r--r-- | user_guide_src/source/helpers/form_helper.rst | 44 |
1 files changed, 21 insertions, 23 deletions
diff --git a/user_guide_src/source/helpers/form_helper.rst b/user_guide_src/source/helpers/form_helper.rst index 015bf1162..02a758694 100644 --- a/user_guide_src/source/helpers/form_helper.rst +++ b/user_guide_src/source/helpers/form_helper.rst @@ -463,6 +463,26 @@ the tag. For example echo form_close($string); // Would produce: </form> </div></div> +form_prep() +=========== + +Allows you to safely use HTML and characters such as quotes within form +elements without breaking out of the form. Consider this example +:: + + $string = 'Here is a string containing "quoted" text.'; + <input type="text" name="myform" value="$string" /> + +Since the above string contains a set of quotes it will cause the form +to break. The ``form_prep()`` function converts HTML so that it can be used +safely:: + + <input type="text" name="myform" value="<?php echo form_prep($string); ?>" /> + +.. note:: If you use any of the form helper functions listed in this page the form + values will be prepped automatically, so there is no need to call this + function. Use it only if you are creating your own form elements. + set_value() =========== @@ -523,26 +543,4 @@ This function is identical to the **set_checkbox()** function above. .. note:: If you are using the Form Validation class, you must always specify a rule for your field, even if empty, in order for the set_*() functions to work. This is because if a Form Validation object is defined, the control for set_*() is handed over to a method of the class instead of the generic helper - function. - -Escaping field values -===================== - -You may need to use HTML and characters such as quotes within form -elements. In order to do that safely, you'll need to use -:doc:`common function <../general/common_functions>` ``html_escape()``. - -Consider the following example:: - - $string = 'Here is a string containing "quoted" text.'; - <input type="text" name="myform" value="$string" /> - -Since the above string contains a set of quotes it will cause the form -to break. The ``html_escape()`` function converts HTML so that it can be -used safely:: - - <input type="text" name="myform" value="<?php echo html_escape($string); ?>" /> - -.. note:: If you use any of the form helper functions listed in this page, the form - values will be prepped automatically, so there is no need to call this - function. Use it only if you are creating your own form elements.
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