- error_reporting: documentation ( source)
<?php
error_reporting(0);
?>
<?=Z^z; /* 32 */?>
<?=Y^x; /* 33 ! */?>
<?=Z^x; /* 34 " */?>
<?=Z^y; /* 35 # */?>
<?=W^s; /* 36 $ */?>
<?=W^r; /* 37 % */?>
<?=W^q; /* 38 & */?>
<?=W^p; /* 39 ' */?>
<?=Z^r; /* 40 ( */?>
<?=Z^s; /* 41 ) */?>
<?=Z^p; /* 42 * */?>
<?=Z^q; /* 43 + */?>
<?=Z^v; /* 44 , */?>
<?=Z^w; /* 45 - */?>
<?=Z^t; /* 46 . */?>
<?=Z^u; /* 47 / */?>
<?=Z^j; /* 48 0 */?>
<?=Z^k; /* 49 1 */?>
<?=Z^h; /* 50 2 */?>
<?=Z^i; /* 51 3 */?>
<?=Z^n; /* 52 4 */?>
<?=Z^o; /* 53 5 */?>
<?=Z^l; /* 54 6 */?>
<?=Z^m; /* 55 7 */?>
<?=Z^b; /* 56 8 */?>
<?=Z^c; /* 57 9 */?>
<?=Y^c; /* 58 : */?>
<?=Z^d; /* 62 > */?>
<?=Z&e; /* 64 @ */?>
<?=Y&g; /* 65 A */?>
<?=Z&g; /* 66 B */?>
<?=W&k; /* 67 C */?>
<?=W&l; /* 68 D */?>
<?=W&m; /* 69 E */?>
<?=W&n; /* 70 F */?>
<?=W&o; /* 71 G */?>
<?=Z&m; /* 72 H */?>
<?=Y&o; /* 73 I */?>
<?=Z&o; /* 74 J */?>
<?=O&k; /* 75 K */?>
<?=O&l; /* 76 L */?>
<?=O&m; /* 77 M */?>
<?=O&n; /* 78 N */?>
<?=M|N; /* 79 O */?>
<?=Z&u; /* 80 P */?>
<?=Y&w; /* 81 Q */?>
<?=Z&w; /* 82 R */?>
<?=W&s; /* 83 S */?>
<?=W&t; /* 84 T */?>
<?=W&u; /* 85 U */?>
<?=W&v; /* 86 V */?>
<?=U|V; /* 87 W */?>
<?=Z&y; /* 88 X */?>
<?=Q|X; /* 89 Y */?>
<?=R|X; /* 90 Z */?>
<?=Y|Z; /* 91 [ */?>
<?=T|X; /* 92 \ */?>
<?=U|Y; /* 93 ] */?>
<?=V|Z; /* 94 ^ */?>
<?=W|Z; /* 95 _ */?>
<?=o&p; /* 96 ` */?>
<?=o&q; /* 97 a */?>
<?=o&r; /* 98 b */?>
<?=o&s; /* 99 c */?>
<?=o&t; /* 100 d */?>
<?=o&u; /* 101 e */?>
<?=o&v; /* 102 f */?>
<?=o&w; /* 103 g */?>
<?=o&x; /* 104 h */?>
<?=o&y; /* 105 i */?>
<?=o&z; /* 106 j */?>
<?=i|j; /* 107 k */?>
<?=m&n; /* 108 l */?>
<?=i|l; /* 109 m */?>
<?=j|l; /* 110 n */?>
<?=m|n; /* 111 o */?>
<?=w&x; /* 112 p */?>
<?=w&y; /* 113 q */?>
<?=w&z; /* 114 r */?>
<?=q|r; /* 115 s */?>
<?=u&v; /* 116 t */?>
<?=q|t; /* 117 u */?>
<?=r|t; /* 118 v */?>
<?=u|v; /* 119 w */?>
<?=y&z; /* 120 x */?>
<?=q|x; /* 121 y */?>
<?=r|x; /* 122 z */?>
<?=y|z; /* 123 { */?>
<?=u|y; /* 125 } */?>
<?=v|z; /* 126 ~ */?>
<?php
// Special cases:
?>
<?=Z^a?> <?php /* 59 ; */?>
<?php echo Z^g; /* 61 = */?>
<?="\174"; /* 124 | */?>