I’m trying to compare words for equality, and the case [upper and lower] is irrelevant. However PHP does not seem to agree! Any ideas as to how to force PHP to ignore the case of words while comparing them?
$arr_query_words = ["hat","Cat","sAt","maT"]; for( $j= 0; $j < count($arr_query_words); $j++ ){ $story_body = str_replace( $arr_query_words[ $j ], '<span style=" background-color:yellow; ">' . $arr_query_words[ $j ] . '</span>', $story_body ); }
Is there a way to carry out the replace even if the case is different?
Advertisement
Answer
Use str_ireplace
to perform a case-insensitive string replacement (str_ireplace
is available from PHP 5):
$story_body = str_ireplace($arr_query_words[$j], '<span style=" background-color:yellow; ">'. $arr_query_words[$j]. '</span>', $story_body);
To case-insensitively compare strings, use strcasecmp
:
<?php $var1 = "Hello"; $var2 = "hello"; if (strcasecmp($var1, $var2) == 0) { echo '$var1 is equal to $var2 in a case-insensitive string comparison'; } ?>