Re: string

Daniel Brown wrote:

On Mon, Apr 7, 2008 at 9:25 AM, John Taylor-Johnston <jt.johnston@usherbrooke.ca> wrote:

$name = "John Taylor"; I want to verify if $name contains "john", if yes echo "found"; Cannot remember which to use: http://ca.php.net/manual/en/ref.strings.php Sorry, John

<?php if(stristr($name,'john')) {

    // True

} ?>

    Since you said you wanted to know if it "contains 'john'", this

will find if 'john' (insensitive) matches any part of the name. So in your case, it would match on both John and Johnston.

I wonder if using strstr() with strtolower() would be faster or slower. <?php $max = 10; $it = 0; while ( $it++ < $max ) { echo "Attempt #{$it}<br />"; $string = 'John Doe'; $counter = 10000; $new_string = strtolower($string); $start_time_1 = microtime(true); while ( $counter-- ) { if ( strstr($new_string, 'john') ) { ### Found it } } echo microtime(true) - $start_time_1."<br />"; $counter = 10000; $start_time = microtime(true); while ( $counter-- ) { if ( stristr($string, 'john') ) { ### Found it } } echo microtime(true) - $start_time."<br />"; } ?> Results: Attempt #1 0.015728950500488 0.022881031036377 Attempt #2 0.015363931655884 0.022166967391968 Attempt #3 0.015865087509155 0.022243022918701 Attempt #4 0.015905857086182 0.022934198379517 Attempt #5 0.015322208404541 0.022816181182861 Attempt #6 0.015490055084229 0.021909952163696 Attempt #7 0.015805959701538 0.021935939788818 Attempt #8 0.01572585105896 0.022881984710693 Attempt #9 0.015491008758545 0.022812128067017 Attempt #10 0.015367031097412 0.02212119102478 -- Jim Lucas "Some men are born to greatness, some achieve greatness, and some have greatness thrust upon them." Twelfth Night, Act II, Scene V by William Shakespeare