How to Compare Two Strings in PHP - Step by Step Examples

How to Compare Two Strings in PHP ?

Answer

To compare two strings in PHP, you can use the strcmp function, which compares two strings and returns an integer based on the comparison.

✐ Examples

1 Compare Two Identical Strings

In this example,

We create two string variables named $str1 and $str2 with identical values.
We use the strcmp function to compare $str1 and $str2.
The strcmp function returns 0 if the two strings are equal.
Finally, we print the comparison result to standard output.

PHP Program

<?php
$str1 = "Hello";
$str2 = "Hello";
$result = strcmp($str1, $str2);
if ($result === 0) {
    echo "The strings are equal.";
} else if ($result > 0) {
    echo "The first string is greater.";
} else {
    echo "The first string is lesser.";
}
?>

Output

The strings are equal.

2 Compare Two Different Strings

In this example,

We create two string variables named $str1 and $str2 with different values.
We use the strcmp function to compare $str1 and $str2.
The strcmp function returns a positive number if $str1 is greater than $str2, and a negative number if $str1 is lesser than $str2.
Finally, we print the comparison result to standard output.

PHP Program

<?php
$str1 = "Hello";
$str2 = "World";
$result = strcmp($str1, $str2);
if ($result === 0) {
    echo "The strings are equal.";
} else if ($result > 0) {
    echo "The first string is greater.";
} else {
    echo "The first string is lesser.";
}
?>

Output

The first string is lesser.

Summary

In this tutorial, we learned How to Compare Two Strings in PHP language with well detailed examples.

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How to Compare Two Strings in PHP - Step by Step Examples

How to Compare Two Strings in PHP ?

Answer

✐ Examples

1 Compare Two Identical Strings

PHP Program

Output

2 Compare Two Different Strings

PHP Program

Output

Summary

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