Hướng dẫn bool function php
This is the simplest type. A bool expresses a truth value. It can be either Syntax To specify a bool literal, use the constants
Typically, the result of an operator which returns a bool value is passed on to a control structure.
Converting to boolean To explicitly convert a value to bool, use the See also Type Juggling. When converting to bool, the following values are considered
Every other value is considered Warning
Fred Koschara ¶ 9 years ago
Mark Simon ¶ 5 years ago
admin at eexit dot fr ¶ 13 years ago
var_dump((string)0 == 'all'); // false goran77 at fastmail dot fm ¶ 6 years ago
terminatorul at gmail dot com ¶ 15 years ago
Steve ¶ 14 years ago
artktec at gmail dot com ¶ 14 years ago
Mark Simon ¶ 5 years ago
Wackzingo ¶ 14 years ago
$var1; // Will display the number 1
echo $var2; //Will display nothing
marklgr ¶ 6 years ago
richie dot hayward at gmail dot com ¶ 6 years ago
geza at turigeza dot com ¶ 9 years ago
mike652638 at qq dot com ¶ 1 year ago
fyrye at torntech dot com ¶ 12 years ago
emanuelemicciulla[at]gmail[dot]com ¶ 7 years ago
oscar at oveas dot com ¶ 11 years ago
Symbol ¶ 13 years ago
Anonymous ¶ 2 years ago
= 5; mercusmaximus at yahoo dot com ¶ 12 years ago
wbcarts at juno dot com ¶ 13 years ago
boolString($bValue = false) { // returns string sumon dot pdk dot bd at gmail dot com ¶ 2 years ago
|