<?php
$xyz[]="a";
var_dump($xyz);
if($xyz != '')
{
echo "xyz is not empty! good to go!\n";
$pw1 = 'my cool password keep it secrete please';
$pw2 = 'some other password';
$abc = strcmp($xyz, $pw1);
if ($abc == 0) { echo "yes '$pw1' is the same as '$xyz'\n"; }
$def = strcmp($xyz, $pw2);
if ($def == 0) { echo "yep '$pw2' is the same as '$xyz'\n"; }
$ghi = strcmp($pw1, $pw2);
if ($ghi != 0) { echo "and yet '$pw1' isn't the same as '$pw2'\n"; }
else {echo "i am strcmp, and i declare that '$pw1' is the same as '$pw2'!!\n"; }
$jkl = strcmp($xyz, $xyz);
echo "jkl = $jkl\n";
}
array(1) {
[0]=>
string(1) "a"
}
xyz is not empty! good to go!
Fatal error: Uncaught TypeError: strcmp(): Argument #1 ($string1) must be of type string, array given in /in/YAdiR:11
Stack trace:
#0 /in/YAdiR(11): strcmp(Array, 'my cool passwor...')
#1 {main}
thrown in /in/YAdiR on line 11
Process exited with code 255.
array(1) {
[0]=>
string(1) "a"
}
xyz is not empty! good to go!
Warning: strcmp() expects parameter 1 to be string, array given in /in/YAdiR on line 11
Notice: Array to string conversion in /in/YAdiR on line 12
yes 'my cool password keep it secrete please' is the same as 'Array'
Warning: strcmp() expects parameter 1 to be string, array given in /in/YAdiR on line 13
Notice: Array to string conversion in /in/YAdiR on line 14
yep 'some other password' is the same as 'Array'
and yet 'my cool password keep it secrete please' isn't the same as 'some other password'
Warning: strcmp() expects parameter 1 to be string, array given in /in/YAdiR on line 19
jkl =
Output for 5.3.0 - 5.3.29, 7.3.32 - 7.3.33
array(1) {
[0]=>
string(1) "a"
}
xyz is not empty! good to go!
Warning: strcmp() expects parameter 1 to be string, array given in /in/YAdiR on line 11
yes 'my cool password keep it secrete please' is the same as 'Array'
Warning: strcmp() expects parameter 1 to be string, array given in /in/YAdiR on line 13
yep 'some other password' is the same as 'Array'
and yet 'my cool password keep it secrete please' isn't the same as 'some other password'
Warning: strcmp() expects parameter 1 to be string, array given in /in/YAdiR on line 19
jkl =
array(1) {
[0]=>
string(1) "a"
}
xyz is not empty! good to go!
Notice: Array to string conversion in /in/YAdiR on line 11
Notice: Array to string conversion in /in/YAdiR on line 13
and yet 'my cool password keep it secrete please' isn't the same as 'some other password'
Notice: Array to string conversion in /in/YAdiR on line 19
Notice: Array to string conversion in /in/YAdiR on line 19
jkl = 0