How To Get The Difference Between Two Dates In PHP

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Good Day!!!

In this article, we are going to learn on How To Get The Difference Between Two Dates In PHP. In the PHP, to calculate the difference between two dates has many ways to do this. To get the difference of hours between two dates, we have to use the functions of datetime.

We have the start date and end date to get their difference hour. strtotime() we are going to use to calculate the two dates difference.

HTML Date Input

This is the input field of date to get the start date and end date came from the user.

1. <center
   
   >
   
2. <form
   
   id
   
   =
   
   "twoDatesDifference"
   
   action
   
   =
   
   ""
   
   method
   
   =
   
   "post"
   
   >
   
3. <div
   
   >
   
4. <label
   
   style
   
   =
   
   "padding-top:20px; font-size:18px; font-weight:bold;"
   
   >
   
   Start Of Date</
   
   label
   
   >
   
5. <br
   
   /
   
   >
   
6. <input
   
   type
   
   =
   
   "date"
   
   name
   
   =
   
   "startOf_Date"
   
   value
   
   =
   
   "<?php if(!empty($_POST["
   
   startOf_Date"])) { echo $_POST["
   
   startOf_Date"]; } ?>
   
   " class="date_textBox">
   
7. </
   
   div
   
   >
   
8. <div
   
   >
   
9. <label
   
   style
   
   =
   
   "padding-top:20px; font-size:18px; font-weight:bold;"
   
   >
   
   End Of Date</
   
   label
   
   >
   
10. <br
    
    /
    
    >
    
11. <input
    
    type
    
    =
    
    "date"
    
    name
    
    =
    
    "endOf_Date"
    
    value
    
    =
    
    "<?php if(!empty($_POST["
    
    startOf_Date"])) { echo $_POST["
    
    endOf_Date"]; } ?>
    
    " class="date_textBox">
    
12. </
    
    div
    
    >
    
13. <div
    
    >
    
14. <input
    
    type
    
    =
    
    "submit"
    
    name
    
    =
    
    "enter"
    
    value
    
    =
    
    "Enter"
    
    class
    
    =
    
    "btn_difference"
    
    >
    
15. </
    
    div
    
    >
    
16. </
    
    form
    
    >
    
17. </
    
    center
    
    >
    

PHP Function

This is the PHP function, and this is the codes that the strtotime() function is used to calculate the hours difference of two dates given by the user.

1. <?php
   
2. function
   
   differenceIn_TwoDates(
   
   $startOf_Date
   
   ,
   
   $endOf_Date
   
   )
   
   {
   
3. $timestamp_start
   
   =
   
   strtotime
   
   (
   
   $startOf_Date
   
   )
   
   ;
   
4. $timestamp_end
   
   =
   
   strtotime
   
   (
   
   $endOf_Date
   
   )
   
   ;
   
5. $difference_Dates
   
   =
   
   abs
   
   (
   
   $timestamp_end
   
   -
   
   $timestamp_start
   
   )
   
   /
   
   3600
   
   ;
   
6. return
   
   $difference_Dates
   
   ;
   
7. }
   
8. if
   
   (
   
   !
   
   empty
   
   (
   
   $_POST
   
   [
   
   "enter"
   
   ]
   
   )
   
   )
   
   {
   
9. $dates_difference
   
   =
   
   differenceIn_TwoDates(
   
   $_POST
   
   [
   
   "startOf_Date"
   
   ]
   
   ,
   
   $_POST
   
   [
   
   "endOf_Date"
   
   ]
   
   )
   
   ;
   
10. echo
    
    "<h3 style='color:red; text-align:center;'>The Difference of Hour in Two Dates is <b style='color:blue;'>"
    
    .
    
    $dates_difference
    
    .
    
    " hours.</b></h3>"
    
    ;
    
11. }
    
12. ?>
    

And, this is the style.

1. <style type=
   
   "text/css"
   
   >
   
2. #twoDatesDifference
   
   {
   
3. border-top
   
   :
   
   red
   
   2px
   
   solid
   
   ;
   
4. padding
   
   :
   
   10px
   
   ;
   
5. width
   
   :
   
   500px
   
   ;
   
6. }
   
7. #twoDatesDifference
   
   div {
   
8. margin-bottom
   
   :
   
   15px
   
9. }
   
10. #twoDatesDifference
    
    div label {
    
11. margin-left
    
    :
    
    5px
    
12. }
    
13. .date_textBox
    
    {
    
14. padding
    
    :
    
    10px
    
    ;
    
15. border
    
    :
    
    #F0F0F0
    
    1px
    
    solid
    
    ;
    
16. border-radius
    
    :
    
    4px
    
    ;
    
17. background-color
    
    :
    
    #FFF
    
    ;
    
18. cursor
    
    :
    
    pointer
    
    ;
    
19. font-size
    
    :
    
    18px
    
    ;
    
20. }
    
21. .btn_difference
    
    {
    
22. background-color
    
    :
    
    azure
    
    ;
    
23. color
    
    :
    
    black
    
    ;
    
24. font-weight
    
    :
    
    bold
    
    ;
    
25. font-size
    
    :
    
    18px
    
    ;
    
26. border
    
    :
    
    red
    
    1px
    
    solid
    
    ;
    
27. border-radius
    
    :
    
    4px
    
    ;
    
28. padding
    
    :
    
    10px
    
    ;
    
29. width
    
    :
    
    200px
    
    ;
    
30. cursor
    
    :
    
    pointer
    
    ;
    
31. }
    
32. .btn_difference
    
    :
    
    hover
    
    {
    
33. background-color
    
    :
    
    black
    
    ;
    
34. color
    
    :
    
    azure
    
    ;
    
35. font-weight
    
    :
    
    bold
    
    ;
    
36. font-size
    
    :
    
    18px
    
    ;
    
37. border
    
    :
    
    red
    
    1px
    
    solid
    
    ;
    
38. border-radius
    
    :
    
    4px
    
    ;
    
39. padding
    
    :
    
    10px
    
    ;
    
40. width
    
    :
    
    200px
    
    ;
    
41. cursor
    
    :
    
    pointer
    
    ;
    
42. }
    
43. </style>
    

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