How to Compare Dates in php?
<p>i need code to compare date in php</p>

<ol>
<li>Input date should be a valid date</li>
<li>input date should not be less than the current date.</li>
<li>i need to give time zones EST,PST,etc..</li>
<li>We need to make the time to GMT and compare with Current Time.</li>
</ol>

<p>can anyone help on this.
Thanks
Ramakrishnan.p</p>
