How can PHP be used to count the occurrences of a specific character, like a space, in a string?

To count the occurrences of a specific character, like a space, in a string using PHP, you can use the `substr_count()` function. This function takes two parameters - the string to search in and the character to count. It returns the number of times the specified character appears in the string. 

$string = "Hello, world! How are you?";
$char = " ";
$count = substr_count($string, $char);
echo "The character '$char' appears $count times in the string.";

Keywords

PHP string manipulation character count substr_count whitespace

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