Both keys in $array1 are different from $array2's key based on their id property values. Case-Sensitive String ComparisonPerform case-sensitive key comparison between arrays. case_sensitive.php <?php function caseSensitiveCompare($key1, $key2) { return strcmp($key1, $key2); } $array1 =...
&& (!memcmp(Z_STRVAL_P(op1),Z_STRVAL_P(op2),Z_STRLEN_P(op1)));break;caseIS_ARRAY:Z_LVAL_P(result) = (Z_ARRVAL_P(op1) ==Z_ARRVAL_P(op2)zend_hash_compare(Z_ARRVAL_P(op1),Z_ARRVAL_P(op2), (compare_func_t) hash_zval_identical_function,1TSRMLS_CC)==0);break;caseIS_OB...
在PHP中,数据会自动转换类型后再进行比较。 这样可能会导致一些费解的现象: 代码语言:javascript 代码运行次数:0 in_array(0,['a','b','c'])// 返回bool(true),也就相当于数组中有0array_search(0,['a','b','c'])// 返回int(0),也就是第一个值的下标0=='abc'// 返回bool(true),也就相当...
PHP 有一个系统函数 is_array()可以判断一个值是否在数组中。 语法如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 in_array(value,array,type) return boolen 参数说明: value :要搜索的值 array : 被搜索的数组 type : 类型,true 全等 ,false 非全等(默认) 示例一:普通使用 代码: 代码语言:...
Compare the keys and values of three arrays (use a user-defined function to compare the keys), and return the matches: <?php function myfunction($a,$b){if ($a===$b) { return 0; } return ($a>$b)?1:-1;} $a1=array("a"=>"red","b"=>"green","c"=>"blue");$a2=array...
Products with unique prices in the first array are returned. Case-Insensitive String ComparisonPerform a case-insensitive comparison of string arrays. case_insensitive.php <?php declare(strict_types=1); function compareStrings(string $a, string $b): int { return strcasecmp($a, $b); } $array...
Chris 和 Alex 发布的代码不遵循这种行为。 Alex 的是 Prototype 的 indexOf 的正式版,而 Chris 的更像 PHP 的array_intersect。这可以满足您的要求: function arrayCompare(a1, a2) { if (a1.length != a2.length) return false; var length = a2.length; ...
array_column() Returns the values from a single column in the input array array_combine() Creates an array by using the elements from one "keys" array and one "values" array array_count_values() Counts all the values of an array array_diff() Compare arrays, and returns the differences ...
array_diff() Compare arrays, and returns the differences (compare values only) array_diff_assoc() Compare arrays, and returns the differences (compare keys and values) array_diff_key() Compare arrays, and returns the differences (compare keys only) array_diff_uassoc() Compare arrays, and retu...
Return Value:Returns an array containing the entries fromarray1that are not present in any of the other arrays PHP Version:4.3+ More Examples Example Compare thekeys and valuesof two arrays, and return the differences: <?php $a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"...