note 95575 deleted from function.isset by googleguy
| From: | googleguy@php.net | Date: | Sat, 19 Jan 2013 03:49:11 +0000 |
| Subject: | note 95575 deleted from function.isset by googleguy | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-193258@lists.php.net to get a copy of this message | ||
Note Submitter: mohd at bahrain dot bz
----
HTML table to displays how different variables are evaluated ..
<?php
$TEST_VAR = array(
'|NULL' => NULL,
'|"NULL"' => "NULL",
'|false' => false,
'|true' => true,
'|FALSE' => FALSE,
'|TRUE' => TRUE,
'|"false"' => "false",
'|"true"' => "true",
'|0' => 0,
'|1' => 1,
'|"0"' => "0",
'|"1"' => "1",
'|NotExsist' => $notexist,
'|""' => "",
'|array()' => array(),
'|array("A", "B")' => array("A", "B"),
'|$_GET' => $_GET,
'|$_POST' => $_POST,
'|count($_GET)' => count($_GET),
'|count($_POST)' => count($_POST),
'|1.5' => 1.5,
'|1e7' => 1e7,
'|-14' => -14,
'|005' => 005,
'|(object) "Halo"' => (object) "Halo",
'|fopen("php://stdin")' => fopen("php://stdin", "r")
);
$CASE = array(
'$var != ""',
'!isset($var)',
'!is_null($var)',
'$var != NULL',
'$var !== NULL',
'!empty($var)',
'$var != true',
'$var !== true',
'$var != false',
'$var !== false',
'!is_bool($var)',
'!is_numeric($var)',
'!is_int($var)',
'!is_float($var)',
'!is_array($var)',
'!is_object($var)',
'!is_resource($var)',
);
$T = 'TRUE'; $F = 'FALSE';
/* CSS */
$lf = "\r\n"; $ds = " "; $gt = '>'; $q = '"'; $ac =
' align="center"';
$t = ' style='; $b = 'background-'; $c = 'color:'; $c1 =
$t.$q.$b.$c.'#EBEBEB'.$q;
$w = 'white-space:nowrap;';
$br = '<br />'; $s1 = '<span'; $s2 = '</span>';
$T = $s1.$t.$q.$c.'#0000FF'.$q.$gt.$T.$s2; $F =
$s1.$t.$q.$c.'#FF0000'.$q.$gt.$F.$s2;
$t1 = '<table border="1" cellspacing="2"
cellpadding="5"'.$t.$q;
$t1 .= 'font-weight:bold; font-size:9px; font-family:Tahoma,Arial;'.$q.$gt;
$t2 = '</table>'; $r1 = '<tr'; $r2 = '</tr>'; $d1 =
'<td'; $d2 = '</td>';
$K = array_keys($TEST_VAR); $n = count($K); $m = count($CASE);
$da = $ds.$ds.$d1.$ac.$gt;
$dz = $d2.$lf;
echo $t1.$lf;
$v = 14;
for ($i=0; $i<$n; $i++) {
if ( ($i != ($n-1)) && ($v > 13) ) {
echo $ds.$r1.$t.$q.$b.$c.'#CCCCCC'.$q.$gt.$lf;
echo $ds.$ds.$d1.$ac.$gt
.'$VAR/IF NOT'
.$dz;
for ($j=0; $j<$m; $j++) {
echo $ds.$ds.$d1.$ac.$t.$q.$w.$q.$gt
.htmlspecialchars($CASE[$j],ENT_QUOTES)
.$dz;
}
echo $ds.$ds.$d1.$ac.$gt
.'$VAR/IF NOT'
.$dz;
echo $ds.$r2.$lf;
$v = 0;
}
$v += 1;
echo $ds.$r1.(($ch=(($ch)?false:true))?'':$c1).$gt.$lf;
echo $ds.$ds.$d1.$ac.$t.$q.$w.$q.$gt
.(htmlspecialchars(trim($K[$i],"|"),ENT_QUOTES))
.$dz;
/* ($var != "")? */
echo $da
.(( $TEST_VAR[($K[$i])] != "" ) ? $T:$F)
.$dz;
/* (!isset($var))? */
echo $da
.(( !isset($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* (!is_null($var))? */
echo $da
.(( !is_null($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* ($var != NULL)? */
echo $da
.(( $TEST_VAR[($K[$i])] != NULL ) ? $T:$F)
.$dz;
/* ($var !== NULL)? */
echo $da
.(( $TEST_VAR[($K[$i])] !== NULL ) ? $T:$F)
.$dz;
/* (!empty($var))? */
echo $da
.(( !empty($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* ($var != true)? */
echo $da
.(( $TEST_VAR[($K[$i])] != true ) ? $T:$F)
.$dz;
/* ($var !== true)? */
echo $da
.(( $TEST_VAR[($K[$i])] !== true ) ? $T:$F)
.$dz;
/* ($var != false)? */
echo $da
.(( $TEST_VAR[($K[$i])] != false ) ? $T:$F)
.$dz;
/* ($var !== false)? */
echo $da
.(( $TEST_VAR[($K[$i])] !== false ) ? $T:$F)
.$dz;
/* (!is_bool($var))? */
echo $da
.(( !is_bool($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* (!is_numeric($var))? */
echo $da
.(( !is_numeric($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* (!is_int($var))? */
echo $da
.(( !is_int($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* (!is_float($var))? */
echo $da
.(( !is_float($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* (!is_array($var))? */
echo $da
.(( !is_array($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* (!is_object($var))? */
echo $da
.(( !is_object($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
/* (!is_resource($var))? */
echo $da
.(( !is_resource($TEST_VAR[($K[$i])]) ) ? $T:$F)
.$dz;
echo $ds.$ds.$d1.$ac.$t.$q.$w.$q.$gt
.(htmlspecialchars(trim(trim($K[$i],"|")),ENT_QUOTES))
.$dz;
echo $ds.$r2.$lf;
}
echo $t2.$lf;
@fclose($file_handle);
function n0t($var=false) {
return (( (!isset($var)) || ((!$var) && ($var !== "0")) )? true: false);
}
?>