PHP의 비교 연산자

<?php
//1. comparing only numerical values/numbers using two variables
$pavan = 2;
$kumar = 5;
if($pavan==$kumar){
echo "TRUE : Because the two variable's values are same \n";
}
else{
echo "FALSE : Because the two variable's values are not same \n";
}
//2. Program to compare two string values
$a = "pavan";
$b = "pavan";
if($a==$b){
echo "TRUE : String values assigned to the two variables are same \n";
}
else{
echo "FALSE : String values assigned to the two variables are not same \n";
}
?>

<?php
$x1 = 100;
$y1 = "100";
var_dump($x1 === $y1); // will give result as false because types are not at all equal
?>

<?php
$pavan1 = 1;
$sake1 = 2;
if($pavan1!=$sake1){
echo "TRUE :: variables values are not same as you expected";
}
else{
echo "FALSE :: variables values are same as not you expected";
}
?>

<?php
$pavan1 = 1;
$sake1 = 2;
if($pavan1<>$sake1){
echo "TRUE :: variables values are not same as you expected .";
}
else{
echo "FALSE :: variables values are same as not you expected";
}
?>

<?php
$x2 = 100;
$y2 = "100";
var_dump($x2 !== $y2); // returns/provide result as true because types are not at all equal
?>

<?php
$x3 = 1473;
$y3 = 1474;
if($x3<$y3){
echo "x3 value :: $x3 \n";
echo "y3 value :: $y3 \n";
echo "x3 value is less than y3 value \n";
}
else{
echo "x3 value is less than y3 value";
}
?>
</h4>
<p><strong>출력:</strong></p>
<p><img  src="https://img.php.cn/upload/article/000/000/000/172490633931064.png" alt="PHP의 비교 연산자" ></p>
<h4>6. 보다 큼 비교 연산자(>)</h4>
<p>보다 큼 연산자는 1<sup>st</sup> 변수 값이 2<sup>nd</sup> 변수 값보다 큰지 또는 2<sup>nd</sup> 변수 값이 다음보다 큰지 확인하는 데 사용됩니다. 첫 번째<sup>st</sup> 변수의 값입니다. 이러한 비교 연산자는 단순한 것부터 복잡한 것까지 많은 프로그램에서 일부 작업을 수행할 때 매우 유용합니다.</p>
<h5>예</h5>
<p>아래의 연산자 프로그램은 어떤 변수의 값이 다른 변수의 값보다 큰지 확인하고 구현한 것입니다.</p>
<p><b>코드:</b></p>


<pre class="brush:php;toolbar:false"><?php
$x4 = 2020;
$y4 = 2019;
echo "x4 value :: $x4 \n";
echo "y4 value :: $y4 \n";
if($x4>$y4){
echo "x4 value is greater than y4 value \n";
}
else{
echo "y4 value is less than x4 value";
}
?>

<?php
$x5 = 2020;
$y5 = 2020;
echo "x5 value :: $x5 \n";
echo "y5 value :: $y5 \n";
if($x5<=$y5){
echo "TRUE :: x5 value is less than or equal to y5 value \n";
}
else{
echo "FALSE :: y5 value is less than x5 value";
}
?>
</h4>
<p><strong>Output:</strong></p>
<p><img  src="https://img.php.cn/upload/article/000/000/000/172490634339597.png" alt="PHP의 비교 연산자" ></p>
<h4>8. Greater than or Equal to Comparison Operator (>=)</h4>
<p>Greater than or Equal to operator helps in checking which number/variable’s value is greater than or equal to which number/other variables value. It also requires two variables values.</p>
<h5>Example</h5>
<p>X6 variables value can either be greater than or equal to the y6 variable’s value. Even though x6,y6 variables value are the same it will execute the statements in the IF condition only.</p>
<p><b>Code:</b></p>
<pre class="brush:php;toolbar:false"><?php
$x6 = 2020;
$y6 = 2020;
echo "x6 value :: $x6 \n";
echo "y6 value :: $y6 \n";
if($x6>=$y6){
echo "TRUE :: x6 value is greater than or equal to y6 value \n";
}
else{
echo "FALSE :: y6 value is less than x6 value";
}
?>