PHP string comparison with '<' or '>' operators <?php $string1 = 'abc'; $string2 = 'abcd'; if ($string1 > $string2) { echo 'true'; } else { echo 'false'; } ?> #output: false How to compare strings case insensitive in PHP?
When you came to this page, you may have been looking for something a little simpler: A function that can check if a small string exists within a larger string starting at a particular index. Using substr_compare() for this can leave your code messy, because you need to check that your...
, here is a compare function that compares strings by the case-insensitive method, unless it finds a grade, in which case it correctly sorts by putting "plus" grades first, unmarked grades second, and "minus" grades last. <?php function cmp($a, $b) { $a = preg_replace('@^(a|an...
>0 - if string1 is greater than string2 PHP Version:4+ More Examples Example Compare two strings (case-insensitive = HELLO and hELLo will output the same): <?php echostrcasecmp("Hello","HELLO"); echo""; echostrcasecmp("Hello","hELLo"); ?> Try...
数据的比较是用 data_compare_func 进行的。如果认为第一个参数小于,等于,或大于第二个参数时必须分别返回一个小于零,等于零,或大于零的整数。这和 array_diff() 不同,后者使用了内部函数来比较数据。 Example #1 array_udiff() 例子<?phpclass cr
$string2 ="Good health Good life."; $case_insensitivity =FALSE;// here, this function works as case-insensitiveechosubstr_compare($main_str, $string2,0,9,TRUE)."";// here, this function case-sensitiveechosubstr_compare($main_str,"GOOD Health",0,11, $case_insensitivity)."";//the fu...
substr_replace(string $string, string $replacement, int $start, ?int $length): 这个用法是将字符串$string中从$start位置开始的$length个字符替换为$replacement字符串。 substr_compare(string $string1, string $string2, int $start, ?int $length, bool $case_insensitive): 这个用法是比较两个字符串$...
sprintf() Writes a formatted string to a variable sscanf() Parses input from a string according to a format str_getcsv() Parses a CSV string into an array str_ireplace() Replaces some characters in a string (case-insensitive) str_pad() Pads a string to a new length str_repeat() ...
strstr — Find first occurrence of a string strtok — Tokenize string strtolower — Make a string lowercase strtoupper — Make a string uppercase strtr — Translate certain characters substr_compare — Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length char...
int strcasecmp ( string $str1 , string $str2 ) This means thatstrcasecmp()function accepts two string (comma separated) as input to compare and returns an int (integer). See the following table to understand the above function definition in an easy way: ...