php true false 0 1
To specify a boolean literal, use the constants TRUE or FALSE . .... It is correct that TRUE or FALSE should not be used as constants for the numbers 0 and 1. ,这是最简单的类型。boolean 表达了真值，可以为 TRUE 或 FALSE 。 .... It is correct that TRUE or FALSE should not be used as constants for the numbers 0 and 1. ,布林值是程式用來判斷是/否結果的變數型態, 其值為TRUE, FALSE (不分大小寫). 在其他程式語言裡, 有另外的值可用來判斷是/否, 如1 代表TRUE, 0 代表FALSE. , A boolean TRUE value is converted to the string "1". Boolean FALSE is converted to "" (the empty string). This allows conversion back and forth ...,$x is undefined, NULL, TRUE, TRUE, FALSE, FALSE .... 0 == null => true ... In some languages, a boolean is promoted to an integer (with a value of 1 or -1, ... ,-1 se considera TRUE , como cualquier otro número distinto de cero (ya sea .... The value false is not a constant for the number 0, it is a boolean value that ... ,0: false 42: true 0.0: false 4.2: true "": false "string": true "0": false "1": true [1, ... for a way to turn any value into a 0/1 that will fit into a MySQL boolean (tinyint) field: ,boolval. (PHP 5 >= 5.5.0, PHP 7) ... Example #1 boolval() examples ... 0: false 42: true 0.0: false 4.2: true "": false "string": true "0": false "1": true [1, 2]: true []: false ...
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 php true false 0 1 相關參考資料
PHP: Booleans - Manual - PHP.net
To specify a boolean literal, use the constants TRUE or FALSE . .... It is correct that TRUE or FALSE should not be used as constants for the numbers 0 and 1. https://www.php.net Boolean 布尔类型 - Manual - PHP
这是最简单的类型。boolean 表达了真值，可以为 TRUE 或 FALSE 。 .... It is correct that TRUE or FALSE should not be used as constants for the numbers 0 and 1. https://www.php.net 【PHP】關於布林值TRUE FALSE - 老灰鴨的筆記本
布林值是程式用來判斷是/否結果的變數型態, 其值為TRUE, FALSE (不分大小寫). 在其他程式語言裡, 有另外的值可用來判斷是/否, 如1 代表TRUE, 0 代表FALSE. http://oldgrayduck.blogspot.co Value 0 and 1 is equal to false and true in php - Stack Overflow
A boolean TRUE value is converted to the string "1". Boolean FALSE is converted to "" (the empty string). This allows conversion back and forth ... https://stackoverflow.com PHP 类型比较表- Manual - PHP
$x is undefined, NULL, TRUE, TRUE, FALSE, FALSE .... 0 == null => true ... In some languages, a boolean is promoted to an integer (with a value of 1 or -1, ... https://www.php.net Booleanos - Manual - PHP
-1 se considera TRUE , como cualquier otro número distinto de cero (ya sea .... The value false is not a constant for the number 0, it is a boolean value that ... https://www.php.net boolval - Manual - PHP
0: false 42: true 0.0: false 4.2: true "": false "string": true "0": false "1": true [1, ... for a way to turn any value into a 0/1 that will fit into a MySQL b... https://www.php.net boolval - PHP.net
boolval. (PHP 5 >= 5.5.0, PHP 7) ... Example #1 boolval() examples ... 0: false 42: true 0.0: false 4.2: true "": false "string": true "0": false "1": true [... https://www.php.net |