indexOf and lastIndexOf in PHP?

Question

In Java, we can use indexOf and lastIndexOf. Since those functions don\'t exist in PHP, what would be the PHP equivalent of this Java code?

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Answer 1

In php:

• stripos() function is used to find the position of the first occurrence of a case-insensitive substring in a string.

• strripos() function is used to find the position of the last occurrence of a case-insensitive substring in a string.

Sample code:

$string = 'This is a string';
$substring ='i';
$firstIndex = stripos($string, $substring);
$lastIndex = strripos($string, $substring);

echo 'Fist index = ' . $firstIndex . ' ' . 'Last index = '. $lastIndex;

Output: Fist index = 2 Last index = 13