1.str_contains()函数该函数用于判断一个字符串是否包含另一个字符串，如果包含则返回true，否则返回false。它的参数列表如下：bool str_contains(string $haystack, string $needle)其中，$haystack表示要搜索的字符串，$needle表示要查找的子字符串。示例：$string = "h
3. 使用array_key_exists()函数:该函数用于检查数组中是否存在指定的键名。可以使用该函数来检查数组中是否包含指定的字符串。例如: “`php $array = [‘apple’ => ‘red’, ‘banana’ => ‘yellow’, ‘cherry’ => ‘red’]; if (array_key_exists(‘banana’, $array)) { echo ‘数组包含字符串...
()函数检查字符串中是否包含当前数组值 if (strpos($string, $value) !== false) { // 如果找到了匹配项,设置$found为true并退出循环 $found = true; break; } } // 根据$found的值输出结果 if ($found) { echo "字符串中包含数组中的一个或多个值。"; } else { echo "字符串中不包含数组中...
If a save is already running, this command will fail and return FALSE. Example $redis->bgSave(); config Description: Get or Set the Redis server configuration parameters. Prototype $redis->config(string $operation, string|array|null $key = NULL, ?string $value = NULL): mixed; Return ...
array(1){[0]=>int(1)} 下面的脚本演示了未定义变量的 Autovivification: 代码语言:javascript 复制 <?php $arr[]='undefined value';$arr['variableNotExist'][]=1;var_dump($arr); 上述脚本输出如下: 代码语言:javascript 复制 array(2){[0]=>string(15)"undefined value"["variableNotExist"]=>ar...
The “Hash” part is a turned-down array of 32-bit Bucket offsets, indexed by hash value. This part may be missed for packed arrays, and in this case, the Buckets are accessed directly by numeric indexes. The “Ordered Values” part is an array of Buckets. Each Bucket contains ...
You can use the PHPin_array()function to test whether a value exists in an array or not. Let's take a look at an example to understand how it basically works: Example Try this code» <?php $zoo = array("Lion", "Elephant", "Tiger", "Zebra", "Rhino", "Bear"); if(in_array...
in_array:anotherfield.*The field under validation must exist in anotherfield's values.integerThe field under validation must be an integer.This validation rule does not verify that the input is of the "integer" variable type, only that the input is a string or numeric value that contains an...
myfunctionRequired. A string that define a callable comparison function. The comparison function must return an integer <, =, or > than 0 if the first argument is <, =, or > than the second argument Technical Details Return Value:Returns an array containing the entries fromarray1that are pr...
The value is null. The value is an empty string. The value is an empty array or empty Countable object. The value is an uploaded file with no path.required_if:anotherfield,value,...The field under validation must be present and not empty if the anotherfield field is equal to any ...