str_contains
str_contains
Determine if a string contains a given substring
bool **str_contains** string $haystack string $needle
Performs a case-sensitive check indicating if is contained
in .
needle``haystack
haystackThe string to search in.
needle
The substring to search for in the .
haystack
Returns true if is in
, false otherwise.
needle``haystack
**Voorbeeld: Using the empty string **
<?php
if (str_contains('abc', '')) {
echo "Checking the existence of the empty string will always return true";
}
?>
Checking the existence of the empty string will always return true
Voorbeeld: Showing case-sensitivity
<?php
$string = 'The lazy fox jumped over the fence';
if (str_contains($string, 'lazy')) {
echo "The string 'lazy' was found in the string\n";
}
if (str_contains($string, 'Lazy')) {
echo 'The string "Lazy" was found in the string';
} else {
echo '"Lazy" was not found because the case does not match';
}
?>
The string 'lazy' was found in the string
"Lazy" was not found because the case does not match
str_ends_with``str_starts_with``stripos``strrpos``strripos``strstr``strpbrk``substr``preg_match