=== hdr:(echoHdr):[p06_echo_print_printf_dump.php;20]:[2026-10-28;14:23:16].
=== menu[1]:echo at:[26]
HelloHello123echo :: str:[peter] int:[69]
=== menu[2]:print at:[43]
HelloHello FunctionLearn PHP
Study PHP at W3Schools.com
SingleQuote :$s
DoubleQuote :rookie
hello world
=== menu[3]:printf at:[72]
Happy days [2018] in [NewYork] for [1526.300000] dollars.
=== menu[4]:dump at:[85]
int(32)
string(12) "Hello world!"
float(32.5)
array(3) {
[0]=>
string(3) "red"
[1]=>
string(5) "green"
[2]=>
string(12) "C_COLOR_BLUE"
}
array(4) {
[0]=>
int(32)
[1]=>
string(12) "Hello world!"
[2]=>
float(32.5)
[3]=>
array(3) {
[0]=>
string(3) "red"
[1]=>
string(5) "green"
[2]=>
string(12) "C_COLOR_BLUE"
}
}
int(4711)
string(13) "Harvey lives."
=== ftr:(echoFtr):[p06_echo_print_printf_dump.php;109;260923191533]:[2026-10-28;14:23:17]:<1>