(PHP 8)
str_starts_with — Checks if a string starts with a given substring
$haystack, string $needle): bool
Performs a case-sensitive check indicating if
haystack begins with needle.
haystackThe string to search in.
needle
The substring to search for in the haystack.
Returns true if haystack begins with
needle, false otherwise.
Exemple #1 Using the empty string ''
<?php
if (str_starts_with('abc', '')) {
echo "All strings start with the empty string";
}
?>
L'exemple ci-dessus va afficher :
All strings start with the empty string
Exemple #2 Showing case-sensitivity
<?php
$string = 'The lazy fox jumped over the fence';
if (str_starts_with($string, 'The')) {
echo "The string starts with 'The'\n";
}
if (str_starts_with($string, 'the')) {
echo 'The string starts with "the"';
} else {
echo '"the" was not found because the case does not match';
}
?>
L'exemple ci-dessus va afficher :
The string starts with 'The' "the" was not found because the case does not match
Note: Cette fonction gère les chaînes binaires.