Adding Logic with PHP

**مبشر** · 31-07-07, 09:36 PM

Okay our task is to make our programs intelligent I mean let's learn how to add decision making logic in our code. PHP like all other good programming languages provides logic and looping by using if and while statements.

Introducing the IF construct
The if construct is one of the basic decision making construct, it is also included in PHP. It allows the conditional execution of code fragments. PHP features an if structure that is similar to that of the 'C' language.

The syntax for if else structure is

کوڈ:

If (conditions)
{
// Code if condition is true
}
else
{
// Code if condition is false
}

Let me give you an example, let's assume that you and your friend are planning to go for a movie and you need more than 20 bucks to go to the movie, if you have less than 20 bucks you can't go, if you would have written a program the PHP equivalent code would be something like this

کوڈ:

<?php
$money = 15;

if($money > 20)
{
echo "Hey we can go to the movie, we have $money bucks";
}
else
{
echo "Oops we can't go to the movie, we have only $money bucks";
}

?>

We have used the Comparison operator > Greater than above to check if $money > 20

PHP supports many different comparison operators that allow us to add logic in our code.

The comparison operators are listed below:

کوڈ:

$a == $b $a is equal to $b
$a != $b $a is not equal to $b

$a < $b $a is less than $b
$a > $b $a is greater than $b
$a <= $b $a is less than or equal to $b
$a >= $b $a is greater than or equal to $b

**منتظمین** · 31-07-07, 09:41 PM

بہت اچھا حسب سابق کافی مفید ہے۔ لیکن کوشش کریں کہ جلدی نیا سبق دیا کریں۔ کیونکہ کچھ اسباق کے بعد ہی صح چھوٹا موٹا پروگرام بنا سکیں گے-

شکریہ

**عرفان حیدر** · 28-12-07, 06:31 PM

سلام،
مذکورہ دھاگے کو بند کیا جارہا ہے کیوں کہ اس میں گذشتہ ایک مہینے سے کو ئی نیا مراسلہ نہیں ڈالا گیا۔
تما م مراسلے ارسال کرنے والے خواتین و حضرات کا شکریہ۔
وسلام،

31-07-07, 09:36 PM	#1
مبشر Member اجنبی تاریخ شمولیت: Jul 2007 عمر: 27 مراسلات: 75 کمائي: 415 شکریہ: 2 12 مراسلہ میں 28 بارشکریہ ادا کیا گیا	Adding Logic with PHP Adding Logic with PHP Okay our task is to make our programs intelligent I mean let's learn how to add decision making logic in our code. PHP like all other good programming languages provides logic and looping by using if and while statements. Introducing the IF construct The if construct is one of the basic decision making construct, it is also included in PHP. It allows the conditional execution of code fragments. PHP features an if structure that is similar to that of the 'C' language. The syntax for if else structure is کوڈ: If (conditions) { // Code if condition is true } else { // Code if condition is false } Let me give you an example, let's assume that you and your friend are planning to go for a movie and you need more than 20 bucks to go to the movie, if you have less than 20 bucks you can't go, if you would have written a program the PHP equivalent code would be something like this کوڈ: <?php $money = 15; if($money > 20) { echo "Hey we can go to the movie, we have $money bucks"; } else { echo "Oops we can't go to the movie, we have only $money bucks"; } ?> We have used the Comparison operator > Greater than above to check if $money > 20 PHP supports many different comparison operators that allow us to add logic in our code. The comparison operators are listed below: کوڈ: $a == $b $a is equal to $b $a != $b $a is not equal to $b $a < $b $a is less than $b $a > $b $a is greater than $b $a <= $b $a is less than or equal to $b $a >= $b $a is greater than or equal to $b Share Share this post on Digg Del.icio.us Technorati Twitter Facebook!

31-07-07, 09:41 PM	#2
منتظمین Administrator تاریخ شمولیت: May 2007 عمر: 36 مراسلات: 11,361 کمائي: 171,667 شکریہ: 9,810 7,526 مراسلہ میں 22,598 بارشکریہ ادا کیا گیا	جواب: Adding Logic with PHP بہت اچھا حسب سابق کافی مفید ہے۔ لیکن کوشش کریں کہ جلدی نیا سبق دیا کریں۔ کیونکہ کچھ اسباق کے بعد ہی صح چھوٹا موٹا پروگرام بنا سکیں گے- شکریہ Share Share this post on Digg Del.icio.us Technorati Twitter Facebook! __________________ تم سپاہی نہیں ہو پیشہ ور قاتلو!

28-12-07, 06:31 PM	#3
عرفان حیدر Senior Member تاریخ شمولیت: Dec 2007 مقام: کراچی عمر: 30 مراسلات: 2,046 کمائي: 8,260 شکریہ: 889 722 مراسلہ میں 1,442 بارشکریہ ادا کیا گیا	جواب: Adding Logic with PHP سلام، مذکورہ دھاگے کو بند کیا جارہا ہے کیوں کہ اس میں گذشتہ ایک مہینے سے کو ئی نیا مراسلہ نہیں ڈالا گیا۔ تما م مراسلے ارسال کرنے والے خواتین و حضرات کا شکریہ۔ وسلام، Share Share this post on Digg Del.icio.us Technorati Twitter Facebook!

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